如何在node.js中执行多行字符串? [英] How do I do a multi-line string in node.js?
问题描述
随着node.js的兴起，JavaScript中越来越需要多行字符串.
With the rise of node.js, multi-line strings are becoming more necessary in JavaScript.
- 即使在浏览器中不起作用，在Node.JS中是否有一种特殊的方法?
- 是否有我可以支持的计划或至少一项功能请求?
我已经知道您可以在每一行的末尾使用\n\，这不是我想要的.
I already know that you can use \n\ at the end of every line, that is not what I want.
推荐答案
节点v4和节点的当前版本
从ES6(以及大于v4的Node版本)开始，向Javascript添加了新的模板文字"固有类型(以反引号`"表示)，该固有类型也可用于构造多行字符串，如:
node v4 and current versions of node
As of ES6 (and so versions of Node greater than v4), a new "template literal" intrinsic type was added to Javascript (denoted by back-ticks "`") which can also be used to construct multi-line strings, as in:
`this is a
single string`
其计算结果为:'this is a\nsingle string'.
请注意，第一行末尾的换行符包含在结果字符串中.
添加了模板文字，以使程序员可以构造字符串，而无需使用util.format或其他模板程序，就可以将值或代码直接注入到字符串文字中，例如:
Template literals were added to allow programmers to construct strings where values or code could be directly injected into a string literal without having to use util.format or other templaters, as in:
let num=10;
console.log(`the result of ${num} plus ${num} is ${num + num}.`);
将显示"10加10的结果为20".到控制台.
which will print "the result of 10 plus 10 is 20." to the console.
旧版本的节点可以使用行连续"字符，从而允许您编写多行字符串，例如:
Older version of node can use a "line continuation" character allowing you to write multi-line strings such as:
'this is a \
single string'
，其计算结果为:'this is a single string'.
请注意，结果字符串中不包含第一行末尾的换行符.
Note that the newline at the end of the first line is not included in the resulting string.
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