Long question Is it possible to add a DOM element only if it does not already exists? Example I have implemented the requirement like so:
I am trying to process a JSON response and generate HTML from it. I w开发者_开发百科ould like to construct HTML \"top to bottom\":
I have a string such as <html><body><div id=\"message\">Hello World!</div></body></html>
I\'m using javascript to validate the form, but can\'t 开发者_如何转开发handle the case when the form is submitted before DOM is ready
I need to trigger an input change event, but only if the value changed. And I need this done from a keyboard event. Is there a way to invoke the browser\'s change mechanism which will either trigger t
I\'m trying to figure out if there is a way (using JavaScript, or jQuery) to go through an entire HTML file replacing all references to external files and replace all the references to files in other
I\'m trying to use jQuery to replace all occurrences of a particular string that occurs in a certain class. There are multiple classes of this type on the page.
I would like to hide any text matching a pattern from any HTML page, before it is displayed. I tried something like that with Greasemonkey :
I want to select recently created element doing something like this: $(\"body\").append(\"<div id=\'popup.dialog\'></div>\");
I have a flash video player in a di开发者_Python百科v inside a webpage, I\'m trying to create a button that will resize this div to fill the whole page and hide everything else behind it. Has anyone t
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