A solution to the problem of JS assignment containing single quotation marks and double quotes _javascript tips

My page is a JSP page that contains a parameter: Lefttree,

This lefttree is spelled out from the background, the content is HTML code: for example:

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<div class= "Test" onclick= "Show (' Tt1 ', ' abc ')" >

In the JSP page, you need to use the JS code to pay this value to a div, as follows:

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<script type= "Text/javascript" >
Window.parent.document.getElementById (' Mptree '). innerhtml= ' <%=lefttree%> ';
<script>

In this way, because the Lefttree contains both single and double quotes, and the outermost single quotation mark when assigned in JS, the error is changed:

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' <div class= ' Test "onclick=" Show (' Tt1 ', ' abc ') ' > '

Workaround:

With the escape character "/"

When stitching Lefttree in the background, it becomes the following form:

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<div class= "Test" onclick= "Show (///' tt1///',///' abc///')" >

which

The first two "//" is used to keep the next "/" on the page

The third "/" is used to escape the following single quotes.

So in the Web page, the Lefttree value is:

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<div class= "Test" onclick= "Show (/' tt1/',/' abc/')" >