如何将javascript中的数字数组转换为字符串？ [英] How can I convert an array of numbers in javascript to string?

问题描述

就像我有 var arr = [1,2,3,4,5] ，我希望它成为 arr [ 1 ， 2， 3， 4， 5] 。我尝试使用：

Like I have var arr = [1,2,3,4,5], I want this to become arr["1","2","3","4","5"]. I tried using:

var x = arr[0].toString(); //outputs "1"

但是当我执行 typeof x 输出数字。

but when I do typeof x it outputs "number".

如何转换为当我执行 typeof 时输出字符串？

How can I convert this that when I do typeof it will output "string"?

推荐答案

最优雅的解决方案

arr = arr.map(String);

这适用于 Boolean 和数字。引用MDN（ https://developer.mozilla.org/ zh-CN / docs / Web / JavaScript / Reference / Global_Objects / String ）

This works for Boolean and Number as well. Quoting MDN (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)

字符串文字（用双精度或单精度表示）引号）和在非构造函数上下文中从字符串调用返回的字符串（即，不使用new关键字）是原始字符串。

String literals (denoted by double or single quotes) and strings returned from String calls in a non-constructor context (i.e., without using the new keyword) are primitive strings.

至于VisioNs的答案，这仅适用于支持 Array.prototype.map

As for VisioNs answer, this only works for browser that support Array.prototype.map

这篇关于如何将javascript中的数字数组转换为字符串？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！