如何从基于键的对象文字返回值? [英] How to return a value from an Object Literal based on a key?

问题描述

我有一个数组如下.我将如何检索特定键的值并将该值放入变量中?

I have an array as follows. How would I retrieve the value of a specific key and put that value in a variable?

var obj = {"one":"1","two":"3","three":"5","four":"1","five":"6"};

例如，如果我想获取三"的值，我该如何在javascript或jQuery中做到这一点?

So for instance if I want to get the value of "three" how would I do it in javascript or jQuery?

推荐答案

您可以通过点或方括号表示法，就像这样:

You can do this via dot or bracket notation, like this:

var myVariable = obj.three;
//or:
var myVariable = obj["three"];

在第二个示例中，"three"可能是另一个变量中的字符串，可能是 .另外，为清楚起见，您所拥有的只是一个对象，而不是数组:)

In the second example "three" could be a string in another variable, which is probably what you're after. Also, for clarity what you have is just an object, not an array :)

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