check id jquery object is empty
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Is there an "exists" function for jQuery?
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jquery exotic id selection
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How to know if an object has an attribute in Python
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Testing for an empty array object in JSON with jQuery
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JavaScript/jQuery - grabbing an integer from an element's id
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How to access HTML element without ID?
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JSON control if @currentfield is empty
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How do I test for an empty JavaScript object?
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jQuery object and DOM element
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How do I check if an object has a specific property in JavaScript?
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how to get class/id from ui & event
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How do I get the id of the selected node in jsTree?
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How to get the this of a object in a handler for a click event in jquery?
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Empty function, what is it?
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get submit button id
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jQuery - Is it okay to use $('#ElementId') everytime?
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JavaScript null check