对象字面量中带有空格的属性名称 [英] Property names with spaces in object literals

问题描述

我只是想知道，一"、二"、三"的东西，可以有空格吗?所以不是一个"，它可以是一个喵"?

I'm just wondering, with the "one", "two", "three" stuff, could there be a space? So instead of "one" it could be "one meow"?

var meow    = { one:        function (t) { return "a"; },
                two:        function (t) { return "b"; },
                three:      function (t) { return "c"; }
              };

推荐答案

当然，属性名称中可以有空格，但是你必须将它们括在 " 中:

Sure, there can be spaces in property names, but then you have to enclose them in ":

var meow    = {
            "one meow": function (t) { return "a"; },
            two:        function (t) { return "b"; },
            three:      function (t) { return "c"; }
            };

当您想稍后访问该属性时，请使用括号语法:

When you want to access that property later, use the bracket syntax:

console.log( meow["one meow"]() );

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