// 深拷贝function deepclone(obj) { function copyList(arr) { let result = [] for (let item of arr) { result.push(this.deepclone(item)) } return result } if (typeof obj === "object") { if (Array.isArray(obj)) { return copyList(obj) } else ...
Deep Cloning Objects in JavaScript, the Modern Way（http://www.builder.io/blog/structured-clone）...
copy = options[ name ];// Prevent never-ending loopif( target === copy ) {continue; }// Recurse if we're merging plain objects or arraysif( deep && copy && ( jQuery.isPlainObject( copy ) || ( copyIsArray = jQuery.isArray( copy ) ) ) ) {if( copyIsArray ) { copyIsArray =f...
there are no nested objects or arrays const shallowCopy = {...calendarEvent}又或者是下面两种方式...
// 深拷贝functiondeepclone(obj){functioncopyList(arr){letresult=[]for(letitemofarr){result.push(this.deepclone(item))}returnresult}if(typeofobj==="object"){if(Array.isArray(obj)){returncopyList(obj)}else{letresult={}for(letkeyinobj){result[key]=deepclone(obj[key])}returnresult}}else...
var shallow = _.clone(objects);console.log(shallow[0] === objects[0]); // trueobjects[0].a = 11console.log(shallow[0]) // { a : 11} DeepCopy深拷贝的实现方式 1. 手动复制 要实现拷贝出来的副本,不受原本影响,那么可以这么实现 ...
if(typeofobj !=='object'|| obj ===null) { returnobj; } letcopy; if(Array.isArray(obj)) { copy = []; for(leti =0; i < obj.length; i++) { copy[i] =deepCopy(obj[i]); } }else{ copy = {}; for(letkeyinobj) { ...
deep: { array: [ new File(someBlobData, 'file.txt') ] }, error: new Error('Hello!') } const veryProblematicCopy = JSON.parse(JSON.stringify(kitchenSink)) 最终得到如下数据: { "set": {}, "map": {}, "regex": {}, "deep": { ...
DeepCopy: 深拷贝 递归属性遍历 一般来说,在JavaScript中考虑复合类型的深层复制的时候,往往就是指对于Date、Object与Array这三个复合类型的处理。我们能想到的最常用的方法就是先创建一个空的新对象,然后递归遍历旧对象,直到发现基础类型的子节点才赋予到新对象对应的位置。不过这种方法会存在一个问题,就是JavaScript...
Unfortunately, all of these create shallow copies, not deep ones.Shallow cloning in JavaScript # With a shallow copy, the original array or object is a unique copy, but any arrays or objects contained within it are actually just references to the original....