我希望像 5 + 6 这样的东西返回56而不是 11 。
I'd like for something like 5 + 6 to return "56" instead of 11.
推荐答案使用+ 5 + 6 强制它为字符串。这也适用于数值变量：
Use "" + 5 + 6 to force it to strings. This works with numerical variables too:
var a = 5; var b = 6; console.log("" + a + b);