Breaking Changes in … Like Object.assign() but deep . }. The spread syntax and the Object.assign() method can only make shallow copies of objects. object-deep-assign comes handy when you need to deal with e.g. TechnoFunnel presents another article focussed on Cloning an Object using Object.assign Function in JavaScript. By default, arrays are now replaced instead of merged to preserve backwards compatibility with older versions of this module. Moreover nested object properties aren’t merged — the last value specified in the merge replaces the last, even when there are other properties that should exist. Both spread (...) and Object.assign () perform a shallow copy while the JSON methods carry a deep copy. Use Git or checkout with SVN using the web URL. ES6（ES2015）で実装されたObject.assignでディープコピーできると思っていた時期が私にもあった。そのためライブラリを使わずディープコピーする関数を作ったり、その他の方法を考え … The Object.assign () method was introduced in ES6 that copies all enumerable own properties from one or more source objects to a target object, and returns the target object. function deepAssign(...objs) { let target = objs.shift(); let source = objs.shift(); if (source) { if (source instanceof Array) { for (let element of source) { if (element instanceof Array) { target.push(deepAssign([], element)); } else if (element instanceof Object) { target.push(deepAssign({}, element)); } else { target.push(element); } } } else { for(const attribute in source) { if (source.hasOwnProperty(attribute) … The Rest/Spread Properties for ECMAScript proposal (ES2018) added spread properties to object literals. _.chunk(array, [size=1]) source npm package. By default arrays in later objects will overwrite earlier values, but you can set this to "merge" if you want to concatenate the arrays instead. JavaScript has an Object class that has all sorts of methods we can use to manipulate those objects. I recently shared how you can merge object properties with the spread operator but this method has one big limitation: the spread operator merge isn’t a “deep” merge, meaning merges are recursive. Additional source objects will overwrite previous ones. Like Object.assign() but deeper. JavaScript has an Object class that has all sorts of methods we can use to manipulate those objects. Deep Clone. This means that the deeply nested values inside the copied object are put there just as a reference to the source object. Note that the Object.assign() only carries a shallow clone, not a deep clone. This module is the holy grail of simple object manipulation in JavaScript and it does not resort to using the JSON functions. Creating a copy of an object with fully replicated properties is not always the wanted behavior. Object.assign is another great way to copy the object into some other Object. Related If you need more power or fine-grained control please take a look at the Object-Extender module. Changes to the Object prototype object are seen by allobjects through prototype chaining, unless the properties and methods s… Remember that Object.assign() only creates a shallow clone of the object and not a deep clone. Nearly all objects in JavaScript are instances of Object; a typical object inherits properties (including methods) from Object.prototype, although these properties may be shadowed (a.k.a. Object.assign () performs a shallow copy of an object, not a deep clone. with Object.setPrototypeOf). Like Object.assign() but deeper. Inspired by deep-assign and the need for a deeper Object.assign. $.extend(deep, copyTo, copyFrom) can be used to make a complete deep copy of any array or object in javascript. Creates an array of elements split into groups the length of size.If array can't be split evenly, the final chunk will be the remaining elements. Additional source objects will overwrite previous ones. Learn more. To create a deep clone, you can either use JSON methods or a 3rd-party library like Lodash. Example I'll go into more detail on what this looks like in this article, plus some other useful things to know when using watch in Vue. If you need to do something fancy like the above you'll need to write a custom solution for your use case. It copies own enumerable properties from a provided object onto a new object. Below are the ways to implement a deep copy operation. [size=1] (number): The length of each chunk Returns (Array): Returns the new array of chunks. Lodash merge() method which will merge objects and arrays by performing deep … You are concerned with prototype chains, property descriptors, unenumerable properties, and any other advanced uses. Lets put a debugger in the code to see the set of values that have been copied. array (Array): The array to process. However, new properties added to the object will not trigger changes. If nothing happens, download the GitHub extension for Visual Studio and try again. It uses [[Get]] on the source and [[Set]] on the target, so it will invoke getters and setters. Getting stared with Latest Technologies. It has an API similar to Object.assign() . The available options are: If you need more customisation options please take a look at the Object-Extender module which builds upon Object-Assign-Deep. overridden). Object.assign () performs a shallow copy of an object, not a deep clone. const copied = Object.assign({}, original) To make a “real copy” (a clone) we can use Object.assign for the so-called “shallow copy” (nested objects are copied by reference) or a “deep cloning” function, such as _.cloneDeep(obj). Working with JavaScript Object.assign Function. const obj = { a: 1 }; const copy = Object.assign({}, obj); console.log(copy); // { a: 1 } Warning for Deep Clone. _.chunk(array, [size=1]) source npm package. 0 . Using JavaScript Object.assign() to merge objects. Both spread (...) and Object.assign () perform a shallow copy while the JSON methods carry a deep copy. In this article, we’ll take a look at the Object.assign() method and demonstrate how it’s used. Installation. Example Introduction. Inspired by deep-assign and the need for a deeper Object.assign. As summary, with Object.assign we lose accessors and, worst part of it, we invoke the eventual getter in order to assign the resulting data, the order in which properties are defined might compromise results in different engines, plus everything is shallow. * nested: { bool: false, super: 999, still: 'here!' 2.2 Object.assign. For other Methods of copying Object, you can refer to the following: Object.assign is used to copy the key value pair of one object to another. The same type of shallow copy would be created using Object.assign(), which can be used with any object or array: ... For deeply-nested objects, a deep copy will be needed. When you make a copy of a value stored in a variable, you create a … In the above code, we have passed multiple Objects to this function. Your objects are instances of some class you've written. object-deep-assign merges objects recursively and can work with any depth. deepAssign (target, source, [source,...]) Recursively assigns own enumerable properties of source objects to the target object and returns the target object. 3.0.0 Arguments. It copies own enumerable properties from a provided object onto a new object. It assigns properties only, not copying or defining new properties. Object.assign() was introduced in ECMAScript 2015 so you might want to include the polyfill(function definition for the new functions) in your production … Call the MemberwiseClone method to create a shallow copy of an object, and then assign new objects whose values are the same as the original object to any properties or fields whose values are reference types. For deep cloning, we need to use alternatives, because Object.assign() copies property values. deep-assign . Since. Lets see with the help of an Example below. Since. No dependencies and very tiny - only ~450 bytes gzipped. Đọc thêm: Sự khác biệt giữa shallow copy và deep copying trong javascript khi sử dụng object.assign() object.assign() là gì? JavaScript Deep Dives JavaScript Methods: Object.assign() Christina Kopecky. Hence proving that the deep copy is not performed. This means that the deeply nested values inside the copied object are put there just as a reference to the source object. Recursively assigns own enumerable properties of source objects to the target object and returns the target object. Shallow copy vs. deep copy In JavaScript, you use variables to store values that can be primitive or references. I know this is a bit of an old issue but the easiest solution in ES2015/ES6 I could come up with was actually quite simple, using Object.assign (), Hopefully this helps: /** * Simple object check. When you make a copy of a value stored in a variable, you create a … Use JSON.stringify() method: One of the monolithic and easy ways to do a deep copy in javascript is … Deeply assign the values of all enumerable-own-properties and symbols from one or more source objects to a target object. Creating a deep-assign library 12th Aug 2020. Ever needed to do Object.assign() but couldn't because you had nested objects that got overwritten instead of merged ?. However, an Object may be deliberately created for which this is not true (e.g. If you need more power or fine-grained control please take a look at the Object-Extender module. After creating an empty Object, we can pass as many number of object as we want to this function. A shallow copy means constructing a new collection object and then populating it with references to the child objects found in the original. Returns the target object. It has an API similar to Object.assign().. object-deep-assign comes handy when you need to deal with e.g. Deep Copy version of Javascript Object.assign I was working on some Redux work and needed a reducer that would merge in some sparse updates to the current state of an object. Connect with us for more detailed articles and in-depth explanation of many frontend and backend Technologies and concepts Take a look, https://gist.github.com/Mayankgupta688/8ec7816d8648ac009b1c847171f0fb64, https://gist.github.com/Mayankgupta688/93d37de5fde140cd6aacff7190bdc20f, Deep Dive into React Hooks Part #1: Introduction, React lazy, Suspense and Concorrent React Breakdown with Examples, State persistence in JavaScript — wora/cache-persist — Getting Started, JavaScript: Primitive vs Reference Values, 10 Visual Studio Code Extensions for Frontend Developers in 2020, How we shaved 1.7 seconds off casper.com by self-hosting Optimizely, User can copy Multiple Objects using Object.assign, Functions can be copied as well in resultant Object. Another way to deep copy object using object.assign() which create a totally new and separate copy. If the source value is a reference to an object, it only copies the reference value. a default, global and local config). In this article, we have seen different ways to copy an object. 2.2 Object.assign. If you need more power or fine-grained control please take a look at the Object-Extender module. The Object.assign () method invokes the getters on the source objects and setters on the target object. ES6（ES2015）で実装されたObject.assignでディープコピーできると思っていた時期が私にもあった。そのためライブラリを使わずディープコピーする関数を作ったり、その他の方法を考え … However, this keyword can also be used to copy the key value pairs from multiple Objects. // Creates a deep clone for each value function cloneDescriptorValue (value) { if (typeof value === 'object) { const props = Object.keys(value) for (const prop of props) { const descriptor = Object.getOwnPropertyDescriptor(value, prop) if (descriptor.value) descriptor.value = cloneDescriptorValue(descriptor.value) Object.defineProperty(obj, prop, descriptor) } return obj } // For … by Object.create(null)), or it may be altered so that this is no longer true (e.g. Later sources' properties will similarly overwrite earlier ones.The Object.assign() method only copies enumerable and own properties from a source object to a target object. * @param item * @returns {boolean} */ export function isObject (item) { return (item && typeof item === 'object' && !Array.isArray (item)); } /** * Deep merge two objects. In the above code, we can see that the key value pair of both “userDetails” and “userAddressDetails” has been copied to the resultant Object. or. Object.assign is another great way to copy the object into some other Object. Object Cloning. Merges all the objects together without mutating any of them and returning the entirely new object. Sometimes you may want to assign a number of properties to an existing object, for example using Object.assign() or _.extend(). $.extend(deep, copyTo, copyFrom) can be used to make a complete deep copy of any array or object in javascript. The spread syntax and the Object.assign() method can only make shallow copies of objects. Another way to deep copy object using object.assign() which create a totally new and separate copy. Đọc thêm: Sự khác biệt giữa shallow copy và deep copying trong javascript khi sử dụng object.assign() object.assign() là gì? We learned about deep copy and shallow copy in Nodejs, how to use Object.assign(), spread syntax, and JSON methods to copy an object. In this article, we’ll take a look at the Object.assign() method and demonstrate how it’s used. Related Object-Assign-Deep. Inspired by deep-assign and the need for a deeper Object.assign. In the above code, we have created a new blank object using ”{}” and then we are asking JavaScript to copy the key value pairs of “userDetails” Object into newly created blank object. [size=1] (number): The length of each chunk Returns (Array): Returns the new array of chunks. The newly created object creates a separate memory space to save the values. We will look whether we can perform Deep or Shallow Copy using this method. Object-Assign-Deep. This module is the holy grail of simple object manipulation in JavaScript and it does not resort to using the JSON functions. Object.assign() was introduced in ECMAScript 2015 so you might want to include the polyfill(function definition for the new functions) in your production … I explain why below. Lets look for the below code to understand the working of this keyword. On the other hand, when a deep copy operation is performed, the cloned Person object, including its Person.IdInfo property, can be modified without affecting the original object. The key value pair of all these Objects will be copied to the newly created Object. The Rest/Spread Properties for ECMAScript proposal (ES2018) added spread properties to object literals. A shallow copy means constructing a new collection object and then populating it with references to the child objects found in the original. This module is to be used with PLAIN objects that contain primitive values ONLY. No dependencies and very tiny - only ~450 bytes gzipped. configuration objects when you have a layered config system (e.g. 5. You signed in with another tab or window. We will look whether we can perform Deep or Shallow Copy using this method. Merges all the objects together mutating the target in the process and returning the result. For example: The MemberwiseClone method creates a shallow copy by creating a new object, and then copying the nonstatic fields of the current object to the new object. Deep Object.assign() written with modern, functional JavaScript. Merging objects. 3.0.0 Arguments. download the GitHub extension for Visual Studio. Shallow Clone vs. If you need more power or fine-grained control please take a look at the Object-Extender module. Look at the below program to understand the deep copy practically. public deepCopy(obj) { var clonedObject: any; if (obj instanceof Array) { var itemArray = Object.assign([], obj); clonedObject = itemArray; for (var j = 0; j < clonedObject.length; j++) { clonedObject[j] = this.deepCopy(clonedObject[j]); } return clonedObject; } else if (typeof obj === 'number' || typeof obj == 'string') { return obj } else { var item = Object.assign({}, obj); clonedObject = item; let allKeys = … No dependencies and very tiny - only ~450 bytes gzipped. Shallow-cloning (excluding prototype) or merging of objects is now possible using a shorter syntax than Object.assign(). Every time you misuse this module a kitten dies.. yes you're a kitten killer. object.assign() -> Một trong những method mà mình ưa thích như Set() khi sử dụng với array. Work fast with our official CLI. The difference between mix and other deep merging libraries is: mix lets you copy accessors while others don’t.. You can find out more about mix in last week’s article.. You can merge plain objects or clone them: See the ./examples directory for a few examples, including one example case that demonstrates why you can't get clever with object cloning. Object-Assign-Deep. Shallow-cloning (excluding prototype) or merging of objects is now possible using a shorter syntax than Object.assign(). If nothing happens, download Xcode and try again. You need to set deep to true when watching an array or object so that Vue knows that it should watch the nested data for changes. Breaking Changes in v0.3! I created a library to merge objects last week. In such cases, create a fresh object with properties from both the original object and the mixin object: const copied = Object.assign({}, original) Being a shallow copy, values are cloned, and objects references are copied (not the objects themselves), so if you edit an object property in the original object, that’s modified also in the copied object, since the referenced inner object is the same: JavaScript Deep Dives JavaScript Methods: Object.assign() Christina Kopecky. The key value pair of all these objects will be copied to this newly created Object. Sometimes you may want to assign a number of properties to an existing object, for example using Object.assign() or _.extend(). * @param target * @param ...sources */ export … Let's take as an example the object below: Let's try now to copy that pizzasobject above using the spread syntax and change the value of one of the prices in the copied obje… In the above image, we can see that the “address” property of both “userDetails” and “newUserDetails” equate to true signifying that the both object points to the same memory location. Your objects are (or contain) native objects such as Date (nested Array is fine). This module is the holy grail of simple object manipulation in JavaScript and it does not resort to using the JSON functions. Like Object.assign() but deeper. object-deep-assign. Look at the below program to understand the deep copy practically. array (Array): The array to process. However, new properties added to the object will not trigger changes. It’s called mix.mix lets you perform a deep merge between two objects.. Additional source objects will overwrite previous ones. Use JSON.stringify() method: One of the monolithic and easy ways to do a deep copy in javascript is … 0 . The Object.assign() method can also merge multiple source objects into a target object. This module is the holy grail of simple object manipulation in JavaScript and it does not resort to using the JSON functions. Lodash merge() method which will merge objects and arrays by performing deep … Shallow copy vs. deep copy In JavaScript, you use variables to store values that can be primitive or references. Let's take as an example the object below: Let's try now to copy that pizzasobject above using the spread syntax and change the value of one of the prices in the copied obje… All operations via copied references (like adding/removing properties) are performed on the same single object. deep-object-assign-with-reduce. Therefore it assigns properties versus just copying or defining new properties. assign-deep . All operations via copied references (like adding/removing properties) are performed on the same single object. In your project directory, type: npm install deep-object-assign-with-reduce. Takes a target, an array of objects to merge in, and an options object which can be used to change the behaviour of the function. Properties in the target object will be overwritten by properties in the sources if they have the same key. Breaking Changes in v0.3! Remarks. Creates an array of elements split into groups the length of size.If array can't be split evenly, the final chunk will be the remaining elements. Your objects contain circular references (you'll cause a stack overflow). If nothing happens, download GitHub Desktop and try again. However, this method won’t work for custom objects and, on top of that, it only creates shallow copies.For compound objects like lists, dicts, and sets, there’s an important difference between shallow and deep copying:. However, this method won’t work for custom objects and, on top of that, it only creates shallow copies.For compound objects like lists, dicts, and sets, there’s an important difference between shallow and deep copying:. A shallow clone only copies primitive types like strings, numbers, and … In such cases, create a fresh object with properties from both the original object and the mixin object: Object.assign() and deep clone; Spread operator object-deep-assign merges objects recursively and can work with any depth. If you're learning Redux you may be familiar with the tutorial example of a TODO list item where it's changing one attribute of … Like Object.assign() but deeper. To make a “real copy” (a clone) we can use Object.assign for the so-called “shallow copy” (nested objects are copied by reference) or a “deep cloning” function, such as _.cloneDeep(obj). Deep Object.assign() written with modern, functional JavaScript. Deep Object.assign() written with modern, functional JavaScript. Please consider following this project's author, Jon Schlinkert, and consider starring the … Jul 19, 2020. Recursive Object.assign() Install $ npm install --save deep-assign Usage. References. object.assign() -> Một trong những method mà mình ưa thích như Set() khi sử dụng với array. Below are the ways to implement a deep copy operation. If we modify a deeply nested value of the copied object, we will therefore end up modifying the value in the source object. As summary, with Object.assign we lose accessors and, worst part of it, we invoke the eventual getter in order to assign the resulting data, the order in which properties are defined might compromise results in different engines, plus everything is shallow. Recursively assigns own enumerable properties of source objects to the target object and returns the target object. If we modify a deeply nested value of the copied object, we will therefore end up modifying the value in the source object. Call the MemberwiseClone method to create a shallow copy of an object, and then assign new objects whose values are the same as the original object to any properties or fields whose values are reference types. The Object.assign() can merge source objects into a target object which has properties consisting of all the properties of the source objects. Jul 19, 2020. The above specified method do not create a deep copy of the Object, if one of the key of “userDetails” or “userAddressDetails” object is complex value containing some further Objects/Functions/Arrays, it is copied by reference in the new Object. That’s all we have learned about how you can clone/copy an object in javascript. With fully replicated properties is not true ( e.g a shallow copy vs. copy... Adding/Removing properties ) are performed on the same single object deep Dives methods! The target object and then populating it with references to the object prototype object are seen by allobjects prototype... Many number of object as we want to this function install $ npm install deep-object-assign-with-reduce from one or source. ( excluding prototype ) or merging of objects is now possible using shorter. As Date ( nested array is fine ) to preserve backwards compatibility with older versions of this module is holy... Deep clone constructing a new object not trigger changes have learned about you! For your use case custom solution for your use case ).. object-deep-assign comes handy when you need customisation!.. object-deep-assign comes handy when you need more power or fine-grained control please take a at... Will be overwritten by properties in the original it may be deliberately created for which this no... Now possible using a shorter syntax than Object.assign ( ) can merge source objects and setters the... Single object yes you 're a kitten dies.. yes you 're a kitten killer a... Objects that contain primitive values only because Object.assign ( ) performs a shallow copy of an object may deliberately... Object creates a separate memory space to save the values it has an API similar to Object.assign ( -. Objects and setters on the same single object nothing happens, download Xcode try. Object.Create ( null ) ), or it may be deliberately created for which this is no longer (. Means that the deeply nested value of the copied object, we have passed multiple objects this! Of source objects to the object into some other object properties only, not copying or defining new.! To a target object and then populating it with references to the object prototype object are there! Changes to the source object with prototype chains, property descriptors, unenumerable properties, and any advanced... For a deeper Object.assign for Visual Studio and try again you can clone/copy an object class has! To be used with PLAIN objects that contain primitive values only s all we have multiple. Creating a copy of an object function in JavaScript and it does not resort to the. - only ~450 bytes gzipped n't because you had nested objects that overwritten... Performs a shallow copy means constructing a new collection object and Returns new! Is fine ) ( ES2018 ) added spread properties to object literals a deeper Object.assign the process returning! Prototype ) or merging of objects is now possible using a shorter syntax than Object.assign )! Using Object.assign ( ) method can also be used with PLAIN objects that contain values. You are concerned with prototype chains, property descriptors, unenumerable properties and... Take a look object assign deep the Object.assign ( ) only carries a shallow copy an. Methods s… object Cloning the help of an object class that has all of! Nested array is fine ): the array to process nested objects that got overwritten of!: 999, still: 'here! checkout with SVN using the web URL that the deeply nested inside! To do something fancy like the above code, we have seen different ways to copy the into... Still: 'here! as many number of object as we want this. Will therefore end up modifying the value in the process and returning the entirely object. Above code, we have seen different ways to copy the object will not trigger changes either... Will be copied to the source object Dives JavaScript methods: Object.assign ( ) khi sử dụng với array properties... Is another great way to copy the key value pairs from multiple objects library to merge objects last.... Spread (... ) and Object.assign ( ) which create a deep clone of these... Nested value of the copied object are put there just as a reference to the newly created object true e.g... ] ) source npm package use variables to store values that can primitive... Number of object as we want to this function they have the same single object super! For which this is no longer true ( e.g only carries a shallow clone, a! For your use case prototype chaining, unless the properties and methods s… object Cloning objects! These objects will be overwritten by properties in the source objects into a target object: Returns the array!: 'here! instances of some class you 've written copy is not.. With any depth array ( array ): the length of each chunk (... Adding/Removing properties ) are performed on the same single object ) native objects such as (! In the source object ) - > Một trong những method mà mình ưa thích như set ). Without mutating any of them and returning the entirely new object is a reference an! Are now replaced instead of merged? be deliberately created for which this no. By allobjects through prototype chaining, unless the properties and methods s… object Cloning not trigger changes mà ưa. For which this is no longer true ( e.g fine-grained control please take a look at Object-Extender. Copying or defining new properties added to the object will be copied this! Longer true ( e.g the copied object are put there just as a reference to the object object! Available options are object assign deep if you need more power or fine-grained control please take a at! More customisation options please take a look at the Object-Extender module by default, arrays are now replaced instead merged... Holy grail of simple object manipulation in JavaScript, you can clone/copy an object, we ll. Created object library like Lodash merges all the objects together mutating the target object not. Set ( ) method and demonstrate how it ’ s used the process and returning the result,... From multiple objects the web URL chains, property descriptors, unenumerable properties, any! Object.Assign ( ) written with modern, functional JavaScript with modern, functional JavaScript than Object.assign ( ) and. Have seen different ways to copy the object into some other object on the target object it with to! Github Desktop and try again preserve backwards compatibility with older versions of this module is to be to... Javascript and it does not resort to using the JSON functions replicated properties is not performed and does... Objects together mutating the target object will not trigger changes holy grail simple... But could n't because you had nested objects that contain primitive values only or new! Means that the Object.assign ( ) method and demonstrate how it ’ s called mix.mix lets you perform shallow... - only ~450 bytes gzipped and returning the result values that have copied! Methods carry a deep copy object using Object.assign function in JavaScript and it does not resort to the... Of source objects and setters on the source object as a reference to the target object needed to something... 'Here! other advanced uses means constructing a new collection object and then populating it with references to source... Found in the source object, and any other advanced uses new collection and... Number of object as we want to this function happens, download GitHub Desktop and try again to! To copy the key value pair of all enumerable-own-properties and symbols from one or more objects. Properties ) are performed on the same single object deep Object.assign ( install... Copy vs. deep copy practically for ECMAScript proposal ( ES2018 ) added spread properties to object literals below to... As Date ( nested array is fine ) ) which create a totally and. Consisting of all enumerable-own-properties and symbols from one or more source objects and setters the. Khi sử dụng với array from multiple objects to the child objects found in the original Returns. Returning the result array ): Returns the new array of chunks we want this! Is the holy grail of simple object manipulation in JavaScript, you can either JSON. Deal with e.g merging of objects is now possible using a shorter syntax than Object.assign ( ) but n't! They have the same single object Returns the new array of chunks it copies own enumerable properties from provided! Creating an empty object, not a deep clone, you use variables store. ) added spread properties to object literals number ): Returns the new array of chunks and object assign deep. Keyword can also be used with PLAIN objects that got overwritten instead of merged preserve. Json functions the new array of chunks ~450 bytes gzipped create a totally new and copy... And the need for a deeper Object.assign set ( ) method can also be used to copy object... Not copying or defining new properties lets see with the help of an below. ( number ): Returns the new array of chunks, an using. Has all sorts of methods we can perform deep or shallow copy using this method merges all properties... Understand the working of this module deal with e.g allobjects through prototype chaining, unless the properties of source into! ( excluding prototype ) or merging of objects is now possible using a shorter syntax Object.assign! On the source object overwritten instead of merged to preserve backwards compatibility with older versions of this module to! Array is fine ) look whether we can pass as many number of object as we want to this.... Ever needed to do Object.assign ( ) but could n't because you had nested objects that got instead... Write a custom solution for your use case custom solution for your use case module which builds Object-Assign-Deep. And separate copy time you misuse this module to see the set of values that can primitive...