如何在JavaScript字符串中插入变量？ [英] How to insert variables in JavaScript strings?

问题描述

在JavaScript中的字符串中插入变量的最佳方法是什么？我猜这不是这个：

What's the best way to do insert variables in a string in JavaScript? I'm guessing it's not this:

var coordinates = "x: " + x + ", y: " + y;

在Java中， String s是不可变的，做上面这样的事情会不必要地创建并扔掉 String s。 Ruby是类似的，有一个很好的方法来做上述事情：

In Java, Strings are immutable and doing something like the above would unnecessarily create and throw away Strings. Ruby is similar and has a nice way of doing the above:

coordinates = "x: #{x}, y: #{y}"

JavaScript有类似的东西吗？

Does something similar exist for JavaScript?

推荐答案

在ES6中作为模板字符串引入

Introduced in ES6 as "template strings"

MDN docs： https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals

MDN docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals

const name = "Nick"
const greeting = `Hello ${name}`  // "Hello Nick"

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