javascript javascript中`和'之间的区别（如果有的话）
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Difference (if there is any) between ` and ' in javascript
提问by roscioli
Recently ran into some JS code that uses ` and '. I can't figure out if there is a different use for each apostrophe. Is there any?
最近遇到一些使用`和'的JS代码。我不知道每个撇号是否有不同的用途。有没有？
回答by Alex Wayne
' or " denote a stringand ` denotes a template string. Template strings have some abilities that normal strings do not. Most importantly, you get interpolation:
' 或 " 表示一个字符串，` 表示一个模板字符串。模板字符串有一些普通字符串没有的能力。最重要的是，你得到了插值：
var value = 123;
console.log('test ${value}') //=> test ${value}
console.log(`test ${value}`) //=> test 123
And multiline strings:
和多行字符串：
console.log('test
test')
// Syntax error
console.log(`test
test`)
// test
// test
They have some other tricks too, more on template strings here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/template_strings
他们也有一些其他技巧，更多关于模板字符串在这里：https: //developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/template_strings
Note they are not supported in all javascript engines at the moment. Which is why template strings are often used with a transpiler like Babel.which converts the code to something that will work in any JS interpreter.
请注意，目前并非所有 javascript 引擎都支持它们。这就是为什么模板字符串经常与像Babel这样的转译器一起使用的原因。它将代码转换为可以在任何 JS 解释器中工作的东西。
