Iterating thru an array using javascript for

This question already has an answer here: How to loop through a plain JavaScript object with the objects as members? 17 answers since your passing data as parameter, you can access the data try something like this : var $errors = {}; $errors['success'] = false; $errors['#errOne'] = "Enter a valid username"; $errors['#errTwo'] = "Enter a valid email"; $errors['#errThree'] = "Enter a

使用javascript for循环访问数组

这个问题在这里已经有了答案: 如何通过一个普通的JavaScript对象与作为成员的对象进行循环? 17个答案 因为你传递的数据作为参数,你可以访问数据 尝试这样的事情: var $errors = {}; $errors['success'] = false; $errors['#errOne'] = "Enter a valid username"; $errors['#errTwo'] = "Enter a valid email"; $errors['#errThree'] = "Enter a valid password"; data : $errors; success: function(da

Javascript object forEach howto?

This question already has an answer here: How to loop through a plain JavaScript object with the objects as members? 17 answers What you have here is a JavaScript question, not a TypeScript question. TS and JS have the same runtime semantics. forEach is a method of Array . Objects don't have forEach . The semantics of forEach don't make sense on regular objects -- your obj doesn

Javascript对象forEach howto?

这个问题在这里已经有了答案: 如何通过一个普通的JavaScript对象与作为成员的对象进行循环? 17个答案 你在这里有一个JavaScript问题,而不是TypeScript问题。 TS和JS具有相同的运行时语义。 forEach是Array一种方法。 对象没有forEach 。 forEach的语义在常规对象上没有意义 - 您的obj没有length或0属性,例如,这是forEach寻找的东西。

read JSON Array without square brackets

This question already has an answer here: How to loop through a plain JavaScript object with the objects as members? 17 answers 你可以使用这段代码 var Nodes = Trend.L13.nodes; for(var key in Nodes) { if( Nodes.hasOwnProperty(key) ) { console.log(Nodes[key]); // Use Nodes[key] in this case to access individual objects } }

阅读没有方括号的JSON数组

这个问题在这里已经有了答案: 如何通过一个普通的JavaScript对象与作为成员的对象进行循环? 17个答案 你可以使用这段代码 var Nodes = Trend.L13.nodes; for(var key in Nodes) { if( Nodes.hasOwnProperty(key) ) { console.log(Nodes[key]); // Use Nodes[key] in this case to access individual objects } }

loop throught all members of an object in javascript

This question already has an answer here: How to loop through a plain JavaScript object with the objects as members? 17 answers I have created a jsfiddle for you at http://jsfiddle.net/5eM4q/ The way you access the data using data[obj].country is incorrect For the solution you can check out this demo. DEMO You can loop Object using for(k in obj) for(k in obj){ var value =

在javascript中循环遍历一个对象的所有成员

这个问题在这里已经有了答案: 如何通过一个普通的JavaScript对象与作为成员的对象进行循环? 17个答案 我在http://jsfiddle.net/5eM4q/为你创建了一个jsfiddle 您使用数据访问的方式 data[obj].country 是不正确的 对于解决方案,你可以看看这个演示。 DEMO 你可以循环使用for(k in obj) for(k in obj){ var value = obj[k]; }

Javascript: Configuration Pattern

Problem : A Javascript function needs few parameters to work with: function kick(person, reason, amount) { // kick the *person* with the *amount*, based on the *reason* } As there's no way to do function overloading in JS like how you do in Java, if it needs to be designed for easy future improvement (parameters adding), it can be written as: /* Function Parameters pattern */ function

Javascript:配置模式

问题 :Javascript函数需要很少的参数才能使用: function kick(person, reason, amount) { // kick the *person* with the *amount*, based on the *reason* } 由于在JS中无法像使用Java那样进行函数重载,所以如果需要将其设计用于将来的轻松改进(参数添加),则可以将其编写为: /* Function Parameters pattern */ function kick() { // kick the person as in *arguments[0]*, with the amount as in *arguments

overloading vs overriding in javascript

In a recent JavaScript interview I was asked about overloading vs overriding. I know this is a concept in Java: https://softwareengineering.stackexchange.com/questions/164353/whats-the-difference-between-overloading-a-method-and-overriding-it-in-java But is there something similar in JavaScript, and if so what would be code examples? My understanding is that overloading isn't common in

重载与重写在JavaScript中

在最近的一次JavaScript采访中,我被问到过载与覆盖。 我知道这是Java中的一个概念: https://softwareengineering.stackexchange.com/questions/164353/whats-the-difference-between-overloading-a-method-and-overriding-it-in-java 但是JavaScript中是否有类似的东西?如果是的话,代码示例是什么? 我的理解是,重载在JavaScript中并不常见。 为什么你需要在JS中使用“重载”? OverRiding对我来说更加清晰 - 一个过

Is it bad practice to have a switch case in a switch case?

Is it bad practice to have a switch case in a switch case? If so, what are alternatives? I don't really want to use if / else if if I don't need. Instead of doing some like: if((this == 1) && (that == 1)){ //something } else if((this == 1) && (that == 2)){ //something } else if((this == 2) && (that == 3)){ //something } I was thinking along the lines of: swi

在开关盒中安装开关盒是不好的做法吗?

在开关盒中安装开关盒是不好的做法吗? 如果是这样,什么是替代品? 如果我不需要,我真的不想使用if / else if 。 而不是像这样做: if((this == 1) && (that == 1)){ //something } else if((this == 1) && (that == 2)){ //something } else if((this == 2) && (that == 3)){ //something } 我正在考虑的方向是: switch(this){ case 1: switch(that){ case 1:

multiple constructor in javascript

I have a question: I was wondering if it is possible to simulate the multiple constructors, like in Java (yes, I know that the languages are completely different)? Let's say that I have a class called "Point" which would have two values "x" and "y". Now, let's say if it were the Java version, I would want two constructors: one that accept two numbers, the

在JavaScript中的多个构造函数

我有一个问题:我想知道是否可以模拟多个构造函数,比如在Java中(是的,我知道这些语言完全不同)? 假设我有一个名为“Point”的类,它有两个值“x”和“y”。 现在,假设它是Java版本,我想要两个构造函数:一个接受两个数字,另一个接受一个字符串: public class Point { private int x; private int y; public Point(int x, int y) { this.x = x; this.y = y; } public Point(String co

How can implement overloading in JavaScript/jQuery?

I trying to call functions with same signature. example: There are two functions with same name: <script> var obj1,obj2,obj3,obj4,obj5; function OpenBox(obj1,obj2){ // code } function OpenBox(obj1,obj2,obj3,obj4,obj5){ // code } </script> When I calling function on click event of link <a id='hlnk1' href='#' onclick='OpenBox(this,"abhishek"); return

如何在JavaScript / jQuery中实现重载?

我试图用相同的签名来调用函数。 例如:有两个同名的函数: <script> var obj1,obj2,obj3,obj4,obj5; function OpenBox(obj1,obj2){ // code } function OpenBox(obj1,obj2,obj3,obj4,obj5){ // code } </script> 在链接的点击事件调用功能的时候 <a id='hlnk1' href='#' onclick='OpenBox(this,"abhishek"); return false;'> Open Box </a> 当我点击上面的链接时,

Javascript Functions and optional arguments

I have two nearly identical javascript functions that are used to initiate a jquery $.get call. The arguments to the function are passed to the script being called. The problem is that one set of calls requires an additional argument that the other does not. To accomplish this I'm using the two nearly identical javascript functions I've mentioned. Here they are: function process(ur

Javascript函数和可选参数

我有两个几乎相同的JavaScript函数,用于启动jquery $ .get调用。 函数的参数被传递给被调用的脚本。 问题是一组调用需要另一个参数,而另一个不需要。 为了实现这一点,我使用了我提到的两个几乎相同的JavaScript函数。 他们来了: function process(url, domid, domain, scan_id) { $.get(url, { domain: domain, scan_id: scan_id }, function(data) { $(domid).html(dat