在JavaScript中推送对象 [英] Push object in Javascript

问题描述

我需要在Javascript中将对象推送到数组，但是每次push都会覆盖我已经添加的相同对象.例如:

I need to push object to array in Javascript, but every time push overwrite the same object I have had already added. For example:

//This is object list
var NewIssue = {};
//This is array
var newIssueList = [];

function myFunction() {
    for (var i = 0; i < 3; i++) {
        NewIssue.Id = i;
        NewIssue.Number = 233 + i;
        NewIssue.Name = "Test" + i.toString();

        newIssueList.push(NewIssue);
    }
}

最后，我将具有3个相同对象的newIssueList.为什么会覆盖第一个，以及如何解决此问题?

In the end I will have newIssueList with 3 same objects. Why it does overwrite the first and how to solve this problem?

推荐答案

您必须在循环内移动对象.

You have to move the object inside the loop.

var newIssueList = [];

function myFunction() {
    for (var i = 0; i < 3; i++) {
        var NewIssue = {};
        NewIssue.Id = i;
        NewIssue.Number = 233 + i;
        NewIssue.Name = "Test" + i.toString();

        newIssueList.push(NewIssue);
    }
}

myFunction();

console.log(newIssueList);

然后您可以扩展对象文字a，但使其更具可读性:

And then you could just extend the object literal a but to make it much more readable:

    for (var i = 0; i < 3; i++) {
        var NewIssue = {
           Id:i,
           Number:233+i,
           Name:"Test"+i
        };

        newIssueList.push(NewIssue);
    }

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