如何在.wrap（）里面使用变量(how to use variable inside .wrap())

如何在.wrap（）里面使用变量(how to use variable inside .wrap())

这可能听起来很傻但我在这段代码中打印变量时遇到问题 -

var clsuffix = "something"; $("#box").wrap('<div class="boxy" />');

我想在class =“ here ”中打印clsuffix变量，所以它可能就像

<div class="boxysomething">

但是当我在class =“”中使用变量时，它会按原样出现（不被视为变量）

This might sound silly but i'm having trouble printing a variable in this code -

var clsuffix = "something"; $("#box").wrap('<div class="boxy" />');

I want to print the clsuffix variable inside the class=" here " so it could be like

<div class="boxysomething">

But when i use the variable inside class="", it comes up as it is (not being treated as variable)

最满意答案

只需将其连接起来。最终，您的目标是构建一个由字面"boxy"和变量clsuffix的内容组成的clsuffix 。 这是用JavaScript中的"boxy" + clsuffix完成的：

$("#box").wrap('<div class="boxy' + clsuffix + '" />');

如果您只是尝试将变量插入到字符串中（例如您可能在PHP双引号字符串中执行），则JavaScript不会解释它：

// Doesn't work in JavaScript: $("#box").wrap('<div class="boxyclsuffix" />');

Just concatenate it in. Ultimately, your goal is to build a string consisting of the literal "boxy" and the contents of the variable clsuffix. That is done with "boxy" + clsuffix in JavaScript:

$("#box").wrap('<div class="boxy' + clsuffix + '" />');

If you were just trying to insert the variable into the string (such as you might do in a PHP double-quoted string), it won't be interpreted by JavaScript:

// Doesn't work in JavaScript: $("#box").wrap('<div class="boxyclsuffix" />');