What is the reason for Jquery targeting every single div element that has the class rule-name assigned to it?

I am new to JQuery and I'm taking it slow. In my Tampermonkey script, I have included the following line of code and executed it on the desired page.

$('<span id="matrixVarTableInit">Default Rule Tests</span>').insertAfter( "div:contains('Default Rule').rule-name" );

My expectation was that this code would insert the provided HTML (the span) after the div that contains the text 'Default Rule' and has the class 'rule-name'.

However, instead of doing that, it is inserting the HTML snippet after every div with the class 'rule-name' (without considering if the tag includes the text 'Default Rule').

javascriptjqueryhtmlcss

Answer №1

Consider switching the order of the :contains() and .className selectors for better results

$('<span id="matrixVarTableInit">Default Rule Tests</span>')
.insertAfter("div.rule-name:contains('Default Rule')");

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