在JavaScript/jQuery中声明具有多行的字符串var [英] Declare a string var with multiple lines in JavaScript/jQuery

问题描述

如何在jquery中用多行声明一个变量，如

How do i declare a variable in jquery with multiple lines like,

原始变量:

var h = '<label>Hello World, Welcome to the hotel</label><input type="button" value="Visit Hotel"><input type="button" value="Exit">';

我要声明的变量:

var h = '<label>Hello World, Welcome to the hotel</label>
              <input type="button" value="Visit Hotel">
              <input type="button" value="Exit">';

推荐答案

您可以使用\指示该行尚未结束.

You can use \ to indicate that the line has not finished yet.

var h= '<label>Hello World, Welcome to the hotel</label> \
              <input type="button" value="Visit Hotel"> \
              <input type="button" value="Exit">';

注意:当您使用\时，以下行中的空格也将成为字符串的一部分，例如

Note: When you use \, the whitespace in the following line will also be a part of the string, like this

console.log(h);

输出

<label>Hello World, Welcome to the hotel</label>               <input type="button" value="Visit Hotel">               <input type="button" value="Exit">

最好的方法是使用Alien先生在评论部分中建议的方法，将字符串连接起来，像这样

The best method is to use the one suggested by Mr.Alien in the comments section, concatenate the strings, like this

var h = '<label>Hello World, Welcome to the hotel</label>' +
              '<input type="button" value="Visit Hotel">' +
              '<input type="button" value="Exit">';

console.log(h);

输出

<label>Hello World, Welcome to the hotel</label><input type="button" value="Visit Hotel"><input type="button" value="Exit">

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