JAVASCRIPT:在IE中创建动态密钥 [英] JAVASCRIPT : create dynamic key in IE

问题描述

var jsonUiid = "sdfsdf";
a={
        [jsonUiid] : {
        "heading":"title"
        }
};

直接在开发人员工具中尝试过. 上面的代码在所有浏览器中都适用. 在Internet Explorer中失败.请帮忙.

Tried directly in developer tools. The above code works in all browsers. It fails in Internet Explorer. Please help.

如果我们不使用方括号[]，它将直接获取"jsonUiid"，而不是上面定义的实际值.

If we don't square bracket[], it directly gets "jsonUiid" rather than the actual value defined above.

推荐答案

计算的属性名称是ES6的一部分，目前并非所有浏览器都完全支持.您可以使用旧式方括号表示法:

Computed property names are part of ES6 which is currently not fully supported by all browsers. You can set object property with old-style bracket notation:

var jsonUiid = "sdfsdf";
var a = {};
a[jsonUiid] = {
    "heading": "title"
};

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