This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers You can use jQuery's $.extend here. Try following code var BI = BI || {}; BI = { firstInit: function () { console.log('I am first init'); } } $.extend(BI, { init: function () { console.log('I am init'); } }); console.log(BI); Here is the DEMO Out
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 你可以在这里使用jQuery的$.extend 。 尝试下面的代码 var BI = BI || {}; BI = { firstInit: function () { console.log('I am first init'); } } $.extend(BI, { init: function () { console.log('I am init'); } }); console.log(BI); 这是DEMO 开箱即用，您无法通过良好的X浏览器支持轻松完成此任务。 然
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers If you are not using jquery , do it as follows: function parseandmatchjson(json1, json2) { var combined_json = {}; // Deep copy of json1 object literal for (var key in json1) { combined_json[key] = json1[key]; } // Copy other values from json2
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 如果你不使用jquery，按如下操作： function parseandmatchjson(json1, json2) { var combined_json = {}; // Deep copy of json1 object literal for (var key in json1) { combined_json[key] = json1[key]; } // Copy other values from json2 for (var key in json2) { if (! json1.hasOw
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers Here's a function that's a bit more generic. It propagates through the object and will merge into a declared variable. const posts = { '2018-05-11': { posts: 2 }, '2018-05-12': { posts: 5 }}; const notes = { '2018-05-11': { notes: 1 }, '2018-05-12'
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 这是一个更通用的函数。 它通过对象传播并将合并到一个声明的变量中。 const posts = { '2018-05-11': { posts: 2 }, '2018-05-12': { posts: 5 }}; const notes = { '2018-05-11': { notes: 1 }, '2018-05-12': { notes: 3 }}; function objCombine(obj, variable) { for (let key of Object.keys(obj)) {
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers 你可以使用jQuery.extend来实现你的愿望。 If you want to join the same keys into arrays like this: Object { name: [" ", Array[x]], email: [" ", Array[y]] } Try looping through each object and push the value: var obj3 = {name:[],email:[]}; for(var i in obj1) { obj3[i].p
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 你可以使用jQuery.extend来实现你的愿望。 如果你想加入像这样的数组相同的键： Object { name: [" ", Array[x]], email: [" ", Array[y]] } 尝试循环遍历每个对象并推送该值： var obj3 = {name:[],email:[]}; for(var i in obj1) { obj3[i].push(obj1[i]); } for(var i in obj2) { obj3[i].push(obj2[i]); }
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers Why can't I assign a new value to “this” in a prototype function? 4 answers 你可以用Object.assign方法扩展this ： class Foo { constructor (props) { Object.assign(this, props); } } const foo = new Foo({ a: 1 }); console.log(foo.a); // 1 Seeing your use of the s
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 为什么我不能在原型函数中为“this”赋新值？ 4个答案 你可以用Object.assign方法扩展this ： class Foo { constructor (props) { Object.assign(this, props); } } const foo = new Foo({ a: 1 }); console.log(foo.a); // 1 看到您使用扩展运算符，看起来您正在使用ECMAScript的第3阶段提案。 https://github.com/tc39/prop
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers Simple for loop for (var key in j2) { j1[key] = j2[key]; } Demo: http://jsfiddle.net/tymeJV/kthVf/ yes, you can implement your own function of inheritance : function inherits(base, extension) { for (var property in base) {
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 简单for循环 for (var key in j2) { j1[key] = j2[key]; } 演示：http://jsfiddle.net/tymeJV/kthVf/ 是的，你可以实现你自己的继承功能： function inherits(base, extension) { for (var property in base) { try {
Possible Duplicate: How can I merge properties of two JavaScript objects dynamically? If I have two Javascript objects which I am using as a list of key-value pairs: var a = {a:1}; var b = {b:2}; what is the most efficient way to combine them into a third object which contains the properties of both? var c = {a:1, b:2}; I don't mind if either or both of a and b are modified in the pro
可能重复： 我如何动态合并两个JavaScript对象的属性？ 如果我有两个Javascript对象，我将其用作键值对列表： var a = {a:1}; var b = {b:2}; 将它们组合成包含两者属性的第三个对象的最有效方法是什么？ var c = {a:1, b:2}; 我不介意a和b中的任何一个或两个在过程中被修改。 你可以简单地做到这一点： var c = {}; for (var key in a) { c[key] = a[key]; } for (var key in b) { c[key] =
This question already has an answer here: How can I merge properties of two JavaScript objects dynamically? 55 answers function update(obj/*, …*/) { for (var i=1; i<arguments.length; i++) { for (var prop in arguments[i]) { var val = arguments[i][prop]; if (typeof val == "object") // this also applies to arrays or null! update(obj[prop], v
这个问题在这里已经有了答案： 我如何动态合并两个JavaScript对象的属性？ 55个答案 function update(obj/*, …*/) { for (var i=1; i<arguments.length; i++) { for (var prop in arguments[i]) { var val = arguments[i][prop]; if (typeof val == "object") // this also applies to arrays or null! update(obj[prop], val); else ob
A strict equality operator will tell you if two object types are equal. However, is there a way to tell if two objects are equal, much like the hash code value in Java? Stack Overflow question Is there any kind of hashCode function in JavaScript? is similar to this question, but requires a more academic answer. The scenario above demonstrates why it would be necessary to have one, and I'
严格的相等运算符会告诉你两个对象类型是否相等。 但是，有没有办法判断两个对象是否相等， 就像 Java中的哈希码值一样 ？ 堆栈溢出问题JavaScript中是否有任何种类的hashCode函数？ 类似于这个问题，但需要更多的学术答案。 上面的场景说明了为什么有必要有一个，我想知道是否有任何同等的解决方案 。 简短的答案 简单的答案是：不，没有通用的方法来确定某个对象在你意思上与另一个对象相等。 例外是当你严格考虑一
This question already has an answer here: How do I check if an object has a property in JavaScript? 22 answers Try hasOwnProperty if(myObject.hasOwnProperty("1030")) { // Do code } It's a bit safer than checking if(myObject["1030"]) . This will return false, if the value is falsey ( false , undefined , null ), which may be desirable, but also does not strictly mean it do
这个问题在这里已经有了答案： 如何检查一个对象是否在JavaScript中有属性？ 22个答案 尝试hasOwnProperty if(myObject.hasOwnProperty("1030")) { // Do code } 这比检查if(myObject["1030"])更安全一些。 如果值为falsey（ false ， undefined ， null ），这将返回false，这可能是可取的，但也并不严格意味着它不存在。