Created
November 4, 2011 17:31
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Test if argument passed is an HTMLElement or not using JQuery
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| <div class="foo">foo</div> |
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| function isHTMLElement(el){ | |
| console.log($(el)[0] instanceof HTMLElement); | |
| } | |
| var myDiv = $('<div></div>'); | |
| var arr = [,myDiv]; | |
| isHTMLElement(myDiv); /* True: passing a string that conforms to HTMLElement */ | |
| isHTMLElement($('.foo')); /* True: passing a selector that exists in the DOM */ | |
| isHTMLElement($('.bar')); /* False: passing a selector that doesn't exist in DOM */ | |
| isHTMLElement('string'); /* False: passing a string that is not a HTMLElement */ | |
| isHTMLElement('<html></html>'); /* True: passing a string that conforms to HTMLElement */ | |
| isHTMLElement(function(){var x = "y"}); /* False: passing a function */ | |
| isHTMLElement(arr[0]); /* False: undefined value in arr[0] */ | |
| isHTMLElement(arr[1]); /* True: reference to myDiv that contains valid HTMLElement */ |
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