I was just browsing Sizzle's source code and I came across this line of code:  array = Array.prototype.slice.call( array, 0 );   I looked up what the function is, but I came to the conclusion that it just returns all elements of the array startin...
Here's a <select> element:  <select>     <option>Hello</option>     <option>Banana</option>     <option>Balloon</option>     <option>Something</option>     <option>Potato</optio...
While using Uploadcare file upload widget, I noticed that the Uploadcare script keeps repainting the HTML tag.  I am not sure if repainting is the right term, but here is what is happening: Checking chrome devtools the HTML tag is highlighting, the s...
Ok saddle up cowboys, because this is going to be a long one. I have been spending the morning going through some of my old code and I'm left wondering about best practices and optimzation. In order to avoid a ride down subjective lane I'll j...
As a example of jQuery code (https://coderwall.com/p/7uchvg), I read that the expression $('#foo a'); behaves like this:       Find every a in the page and then filter a inside #foo.   And it does not look  efficient.  Is that correct? And if...
Is there a way to validate (verify that its constructed correctly) a Sizzle selector without running it?...
I've discovered that I have a need for selectors with full support for DOM textNodes that jQuery doesn't provide.  jQuery ignores text nodes, probably because most pages have tons of irrelevant blank ones between tags that the various browser...
This question already has answers here:...
Why using this:  var parent = $('div.form.offer_mails'); var period = parent.find('input[type=checkbox,name=timeperiod]');   I get this (exception in my Mozilla Firefox Error Console):  Error: uncaught exception: Syntax error, unrecog...
I'm trying to exclude two cases in my CSS selector. Currently the selector looks like this:  $$('select:not([class=session])').each(function(){     //blah blah })   But i want to exclude another class named "sessionproperties"  Is...

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