JavaScript推送到数组 [英] JavaScript push to array

问题描述

如何将新值推送到以下数组?

How do I push new values to the following array?

json = {"cool":"34.33","alsocool":"45454"}

我尝试了json.push("coolness":"34.33");，但是没有用.

I tried json.push("coolness":"34.33");, but it didn't work.

推荐答案

它不是数组.

var json = {"cool":"34.33","alsocool":"45454"};
json.coolness = 34.33;

或

var json = {"cool":"34.33","alsocool":"45454"};
json['coolness'] = 34.33;

您可以将其作为数组来执行，但这将是一种不同的语法(这几乎肯定不是您想要的)

you could do it as an array, but it would be a different syntax (and this is almost certainly not what you want)

var json = [{"cool":"34.33"},{"alsocool":"45454"}];
json.push({"coolness":"34.33"});

请注意，此变量名称极易引起误解，因为此处没有JSON .我会用别的名字命名.

Note that this variable name is highly misleading, as there is no JSON here. I would name it something else.

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