[英]Combining single and double quotes in JavaScript
I'm wondering if JavaScript has a writing format for using html elements that have both single and double quotes inside JavaScript functions. 我想知道JavaScript是否具有用于使用在JavaScript函数中同时具有单引号和双引号的html元素的书写格式。 May be something like heredoc for javascript or it could be a function in jQuery. 可能是类似于Heredoc的javascript,也可能是jQuery中的函数。 I couldn't find a solution to my problem and will try to describe it below: 我找不到解决问题的方法,将尝试在下面进行描述:
I am writing a web page on php. 我正在用php编写网页。 I have a page and there is a form
in it. 我有一个页面,里面有一个form
。 There is a jQuery function that appends select
elements to a form. 有一个jQuery函数将select
元素附加到表单。 After appending, user selects some options and submit the form. 追加后,用户选择一些选项并提交表单。 (I really wanted to paste a whole code here to make it clearer, but there is a big amount of code which is not so nice, so I tried to simplify it for you, sorry for some bad code) (我真的很想在此处粘贴整个代码以使其更清晰,但是有很多代码不是那么好,所以我尝试为您简化代码,对不起一些不好的代码)
I have a php variable like this one ( select
has onchange
event, showUser
is a function with AJAX request): 我有一个像这样的php变量( select
具有onchange
事件, showUser
是具有AJAX请求的函数):
$string = <<<EOT
<select name="sapak[]" onchange='showUser(this.value, document.getElementsByName("dereje[]")[0].value)'>
EOT;
And there are many option
in between and of course closing </select>
(I didn't write all the code to be shorter). 而且之间还有很多option
,当然还有</select>
(我没有写出所有较短的代码)。 A part of jQuery function that appends select
to the form
: jQuery函数的一部分,将select
附加到form
:
$(wrapper).append('<div> <? echo $string; ?> <a href="#" class="remove_field">Del</a></div>');
My problem here is that in $string
variable I have to use single and double quotes, and when it comes to append()
function in jQuery I use quotes again. 我的问题是在$string
变量中,我必须使用单引号和双引号,当涉及到jQuery中的append()
函数时,我再次使用引号。 And all these give me error in browser's console Uncaught SyntaxError: Unexpected identifier
, because of single quotes started at append('
, but ending at onchange='
. Is there are any smart solution for this? I thought that heredoc will be, I've googled and I think that actually there is no heredoc for javascript. May be some other formattings available? 所有这些给我带来了浏览器控制台错误Uncaught SyntaxError: Unexpected identifier
,因为单引号始于append('
,但以onchange='
结尾。是否有任何明智的解决方案?我以为Heredoc会是,我ve google,我认为实际上没有javascript的Heredoc。可能还有其他格式可用吗?
This should work : 这应该工作:
$(wrapper).append("<div> <? echo $string; ?> </div>");
$string = <<<EOT
<select name=\"sapak[]\" onchange=\"showUser(this.value, document.getElementsByName('dereje[]')[0].value)\">
EOT;
As @Imperative advises about character escaping 正如@Imperative建议有关字符转义
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