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2014/10/16 ¤W¤È 12:08:04
jquery Programming Glossary: selectorEvents triggered by dynamically generated element are not captured by event handler http://stackoverflow.com/questions/12829963/events-triggered-by-dynamically-generated-element-are-not-captured-by-event-hand Or in older versions If version 1.6 or below note the selector and event are in a different order than above '#modal' .delegate..
In jQuery, how to attach events to dynamic html elements? http://stackoverflow.com/questions/1359018/in-jquery-how-to-attach-events-to-dynamic-html-elements event handler to a parent element using .on and pass the a selector combined with 'myclass' as an argument. 'body' .on 'click' 'a.myclass'..
Why does jQuery or a DOM method such as `getElementById` not find the element? http://stackoverflow.com/questions/14028959/why-does-jquery-or-a-dom-method-such-as-getelementbyid-not-find-the-element document.getElementById #id or any other DOM method jQuery selector not finding the elements javascript jquery dom getelementbyid.. will return null . jQuery The same applies to all selectors with jQuery. jQuery won't find elements if you misspelled your.. jQuery. jQuery won't find elements if you misspelled your selector or you are trying to select them before they actually exist..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events can go even further and use a page id instead of document selector. Lets say we have jQuery Mobile page with an id index div data.. jsfiddle.net Gajotres K8YmG Solution 3 Use a jQuery Filter selector like this '#carousel div Event click ' .each function If click.. to hook an event for the life of the app based on its selector. Great right Wrong the .live method is extremely slow. The .live..
How to change the href for a hyperlink using jQuery http://stackoverflow.com/questions/179713/how-to-change-the-href-for-a-hyperlink-using-jquery point to Google. You probably want a somewhat more refined selector though. For instance if you have a mix of link source hyperlink.. to them. For safety then we can specify that our selector will only match a tags with an existing href attribute a href..
jQuery selector regular expressions http://stackoverflow.com/questions/190253/jquery-selector-regular-expressions selector regular expressions I am after documentation on using wildcard.. not sure on the exact terminology with a jQuery selector. I have looked for this myself but have been unable to find.. on patterns of an attribute value. jquery regex jquery selectors share improve this question James Padolsey created a wonderful..
Event binding on dynamically created elements? http://stackoverflow.com/questions/203198/event-binding-on-dynamically-created-elements http api.jquery.com on The following live signature selector .live eventName function Can be replaced with the following..
Is there an “exists” function for jQuery? http://stackoverflow.com/questions/31044/is-there-an-exists-function-for-jquery element in jQuery The current code that I have is this if selector .length 0 Do something Is there is a more elegant way to approach.. Yes jQuery.fn.exists function return this.length 0 if selector .exists Do something There you go This is in response to Herding..
http://stackoverflow.com/questions/5874652/prop-vs-attr vs .attr So jQuery 1.6 has the new function prop . selector .click function instead of this.getAttribute 'style' do i use..
Resetting a multi-stage form with jQuery http://stackoverflow.com/questions/680241/resetting-a-multi-stage-form-with-jquery 'form name myName ' by name Using the text radio etc. selectors by themselves is considered bad practice by jQuery as they.. answer. Anyhow by specifying the input part of the selector plus the cache of the form element this should make it the best..
Turning live() into on() in jQuery http://stackoverflow.com/questions/8021436/turning-live-into-on-in-jquery equivalent calls for all three event attachment methods selector .live events data handler jQuery 1.3 document .delegate selector.. .live events data handler jQuery 1.3 document .delegate selector events data handler jQuery 1.4.3 document .on events selector..
What is the cost of '$(this)'? http://stackoverflow.com/questions/10433014/what-is-the-cost-of-this if selector.nodeType this.context this 0 selector Selector here is a DOMElement this.length 1 return this I did some tests..
jQuery vs document.querySelectorAll http://stackoverflow.com/questions/11503534/jquery-vs-document-queryselectorall vs document.querySelectorAll I heard several times that jQuery's strongest asset is the.. I know you can achieve the same result with document.querySelector or document.querySelectorAll which are supported in ie8 and.. same result with document.querySelector or document.querySelectorAll which are supported in ie8 and above . So the question is..
Getting the “match” object in a Custom Filter Selector in jQuery 1.8 http://stackoverflow.com/questions/11624345/getting-the-match-object-in-a-custom-filter-selector-in-jquery-1-8 the &ldquo match&rdquo object in a Custom Filter Selector in jQuery 1.8 For reference here's an article on Creating a.. reference here's an article on Creating a Custom Filter Selector with jQuery . Introduction For those not familiar with jQuery's.. For those not familiar with jQuery's Custom Filter Selectors here's a quick primer on what they are If you need a reusable..
How to get a DOM Element from a JQuery Selector http://stackoverflow.com/questions/1677880/how-to-get-a-dom-element-from-a-jquery-selector to get a DOM Element from a JQuery Selector I'm having an impossibly hard time finding out to get the actual..
http://stackoverflow.com/questions/2263975/jquery-or-selector OR Selector I am wondering if there is a way to have OR logic in jQuery..
jQuery get DOM node? [duplicate] http://stackoverflow.com/questions/2316199/jquery-get-dom-node Possible Duplicate How to get a DOM Element from a JQuery Selector I can select a node using jQuery with something like '#element_id'..
Multiple Parameters for jQuery selector? http://stackoverflow.com/questions/2672034/multiple-parameters-for-jquery-selector Give a look to the documentation of the jQuery function Selector Context By default selectors perform their searches within the.. selector you post button input submit a is called Multiple Selector and there you can specify any number of selectors to combine..
Select <a> which href ends with some string http://stackoverflow.com/questions/303956/select-a-which-href-ends-with-some-string string share improve this question 'a href ABC ' ... Selector documentation can be found at http docs.jquery.com Selectors.. documentation can be found at http docs.jquery.com Selectors For attributes is exactly equal is not equal ^ is starts with..
jQuery filtering selector to remove nested elements matching pattern http://stackoverflow.com/questions/3096098/jquery-filtering-selector-to-remove-nested-elements-matching-pattern outers Interactive working example http jsfiddle.net Zb9gF Selector performance seems to be much better using this method as opposed..
How to Generate All Possible CSS 2 Selector Combinations? http://stackoverflow.com/questions/5135287/how-to-generate-all-possible-css-2-selector-combinations to Generate All Possible CSS 2 Selector Combinations What would be the best way to generate all possible.. What would be the best way to generate all possible CSS 2 Selector Combinations for a DOM element in context with the current state.. as an argument to the method it returns all possible CSS 2 Selector combinations for the Argument in form of an array. An optional..
jQuery Selector: Id Ends With? http://stackoverflow.com/questions/609382/jquery-selector-id-ends-with Selector Id Ends With Is there a selector that I can query for elements..
In jQuery, is selecting by class or id faster than selecting by some other attribute? http://stackoverflow.com/questions/6460644/in-jquery-is-selecting-by-class-or-id-faster-than-selecting-by-some-other-attri diff s startTime return diff script head body h1 jQuery Selector Performance Context vs No Context h1 h2 .someclass h2 span id..
how do I find elements that contain a data-* attribute matching a prefix using jquery http://stackoverflow.com/questions/7602410/how-do-i-find-elements-that-contain-a-data-attribute-matching-a-prefix-using-j to express something like the Attribute Contains Prefix Selector name value but instead of matching value I need to match against..
Is there a jQuery selector to get all elements that can get focus? http://stackoverflow.com/questions/7668525/is-there-a-jquery-selector-to-get-all-elements-that-can-get-focus So what about naming all those explicitly in a jQuery Selector 'a href area href input not disabled select not disabled textarea..
http://stackoverflow.com/questions/841553/jquery-this-child-selector this Child Selector I'm using this on a page jQuery '.class1 a' .click function..
Events triggered by dynamically generated element are not captured by event handler http://stackoverflow.com/questions/12829963/events-triggered-by-dynamically-generated-element-are-not-captured-by-event-hand 'input' function handler this .val name this .attr 'name' Or in older versions If version 1.6 or below note the selector and event are in a different order than above '#modal' .delegate 'input' 'keyup' function handler this .val name this .attr..
In jQuery, how to attach events to dynamic html elements? http://stackoverflow.com/questions/1359018/in-jquery-how-to-attach-events-to-dynamic-html-elements in preference to .live . For jQuery 1.7 you can attach an event handler to a parent element using .on and pass the a selector combined with 'myclass' as an argument. 'body' .on 'click' 'a.myclass' function alert this .text This will work for all..
Why does jQuery or a DOM method such as `getElementById` not find the element? http://stackoverflow.com/questions/14028959/why-does-jquery-or-a-dom-method-such-as-getelementbyid-not-find-the-element not find the element What are the possible reasons for document.getElementById #id or any other DOM method jQuery selector not finding the elements javascript jquery dom getelementbyid share improve this question Short and simple Because.. script is executed the element does not exist yet and getElementById will return null . jQuery The same applies to all selectors with jQuery. jQuery won't find elements if you misspelled your selector or you are trying to select them before they actually.. return null . jQuery The same applies to all selectors with jQuery. jQuery won't find elements if you misspelled your selector or you are trying to select them before they actually exist . An added twist is when jQuery is not found because you have..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events we can use it like this document .on 'pageinit' function We can go even further and use a page id instead of document selector. Lets say we have jQuery Mobile page with an id index div data role page id index div data theme a data role header h3 First.. e alert 'Button click' Working jsFiddle example http jsfiddle.net Gajotres K8YmG Solution 3 Use a jQuery Filter selector like this '#carousel div Event click ' .each function If click is not bind to #carousel div do something Because event filter.. as elements come and go. The .live method made it possible to hook an event for the life of the app based on its selector. Great right Wrong the .live method is extremely slow. The .live method actually hooks its events to the document object..
How to change the href for a hyperlink using jQuery http://stackoverflow.com/questions/179713/how-to-change-the-href-for-a-hyperlink-using-jquery www.google.com ...Will modify the href of all hyperlinks to point to Google. You probably want a somewhat more refined selector though. For instance if you have a mix of link source hyperlink and link target a.k.a. anchor anchor tags a name MyLinks.. a ...Then you probably don't want to accidentally add href attributes to them. For safety then we can specify that our selector will only match a tags with an existing href attribute a href ... Of course you'll probably have something more interesting..
jQuery selector regular expressions http://stackoverflow.com/questions/190253/jquery-selector-regular-expressions selector regular expressions I am after documentation on using wildcard or regular expressions not sure on the exact terminology.. I am after documentation on using wildcard or regular expressions not sure on the exact terminology with a jQuery selector. I have looked for this myself but have been unable to find information on the syntax and how to use it. Does anyone know.. syntax is EDIT The attribute filters allow you to select based on patterns of an attribute value. jquery regex jquery selectors share improve this question James Padolsey created a wonderful filter that allows regex to be used for selection. Say..
Event binding on dynamically created elements? http://stackoverflow.com/questions/203198/event-binding-on-dynamically-created-elements in favor of on and deleted in version 1.9 please use on instead http api.jquery.com on The following live signature selector .live eventName function Can be replaced with the following on signature document .on eventName selector function share..
Is there an “exists” function for jQuery? http://stackoverflow.com/questions/31044/is-there-an-exists-function-for-jquery function for jQuery How can I check the existence of an element in jQuery The current code that I have is this if selector .length 0 Do something Is there is a more elegant way to approach this Perhaps a plugin or a function jquery share improve.. a plugin or a function jquery share improve this question Yes jQuery.fn.exists function return this.length 0 if selector .exists Do something There you go This is in response to Herding Code podcast with Jeff Atwood share improve this answer..
http://stackoverflow.com/questions/5874652/prop-vs-attr vs .attr So jQuery 1.6 has the new function prop . selector .click function instead of this.getAttribute 'style' do i use this .prop 'style' or this .attr 'style' or in this case do..
Resetting a multi-stage form with jQuery http://stackoverflow.com/questions/680241/resetting-a-multi-stage-form-with-jquery to call use resetForm '#myform' by id recommended resetForm 'form name myName ' by name Using the text radio etc. selectors by themselves is considered bad practice by jQuery as they end up evaluating to text which makes it take much longer than.. prefer the whitelist approach and wish I had used it in my original answer. Anyhow by specifying the input part of the selector plus the cache of the form element this should make it the best performing answer here. This answer might still have some..
Turning live() into on() in jQuery http://stackoverflow.com/questions/8021436/turning-live-into-on-in-jquery of its successors is straightforward these are templates for equivalent calls for all three event attachment methods selector .live events data handler jQuery 1.3 document .delegate selector events data handler jQuery 1.4.3 document .on events selector..
What is the cost of '$(this)'? http://stackoverflow.com/questions/10433014/what-is-the-cost-of-this object and setting the length of the context to 1 Handle DOMElement if selector.nodeType this.context this 0 selector Selector here is a DOMElement this.length 1 return this I did some tests with jsPerf and I found that indeed caching the jQuery object..
jQuery vs document.querySelectorAll http://stackoverflow.com/questions/11503534/jquery-vs-document-queryselectorall vs document.querySelectorAll I heard several times that jQuery's strongest asset is the way it queries and manipulates elements in the DOM you can.. be very hard to do in regular javascript . However as far as I know you can achieve the same result with document.querySelector or document.querySelectorAll which are supported in ie8 and above . So the question is why 'risk' jQuery's overhead if it's.. javascript . However as far as I know you can achieve the same result with document.querySelector or document.querySelectorAll which are supported in ie8 and above . So the question is why 'risk' jQuery's overhead if it's strongest asset can be..
Getting the “match” object in a Custom Filter Selector in jQuery 1.8 http://stackoverflow.com/questions/11624345/getting-the-match-object-in-a-custom-filter-selector-in-jquery-1-8 the &ldquo match&rdquo object in a Custom Filter Selector in jQuery 1.8 For reference here's an article on Creating a Custom Filter Selector with jQuery . Introduction For those.. object in a Custom Filter Selector in jQuery 1.8 For reference here's an article on Creating a Custom Filter Selector with jQuery . Introduction For those not familiar with jQuery's Custom Filter Selectors here's a quick primer on what they.. on Creating a Custom Filter Selector with jQuery . Introduction For those not familiar with jQuery's Custom Filter Selectors here's a quick primer on what they are If you need a reusable filter you can extend jQuery ™s selector expressions by adding..
How to get a DOM Element from a JQuery Selector http://stackoverflow.com/questions/1677880/how-to-get-a-dom-element-from-a-jquery-selector to get a DOM Element from a JQuery Selector I'm having an impossibly hard time finding out to get the actual DOMElement from a jquery selector. Sample Code input type..
http://stackoverflow.com/questions/2263975/jquery-or-selector OR Selector I am wondering if there is a way to have OR logic in jQuery selectors. For example I know an element is either a descendant..
jQuery get DOM node? [duplicate] http://stackoverflow.com/questions/2316199/jquery-get-dom-node get DOM node duplicate Possible Duplicate How to get a DOM Element from a JQuery Selector I can select a node using jQuery with something like '#element_id' but how would I get the DOM element for use with non..
Multiple Parameters for jQuery selector? http://stackoverflow.com/questions/2672034/multiple-parameters-for-jquery-selector Is just equivalent to use the find method context .find expr Give a look to the documentation of the jQuery function Selector Context By default selectors perform their searches within the DOM starting at the document root. However an alternate context.. of the clicked element this Also notice that the selector you post button input submit a is called Multiple Selector and there you can specify any number of selectors to combine into a single result just by separating them by a comma. share..
Select <a> which href ends with some string http://stackoverflow.com/questions/303956/select-a-which-href-ends-with-some-string to find this link a href http server page.aspx id ABC jquery string share improve this question 'a href ABC ' ... Selector documentation can be found at http docs.jquery.com Selectors For attributes is exactly equal is not equal ^ is starts with..
jQuery filtering selector to remove nested elements matching pattern http://stackoverflow.com/questions/3096098/jquery-filtering-selector-to-remove-nested-elements-matching-pattern . Next remove all inners that are descendants of other outers Interactive working example http jsfiddle.net Zb9gF Selector performance seems to be much better using this method as opposed to the .filter as well http jsperf.com selector test find..
How to Generate All Possible CSS 2 Selector Combinations? http://stackoverflow.com/questions/5135287/how-to-generate-all-possible-css-2-selector-combinations to Generate All Possible CSS 2 Selector Combinations What would be the best way to generate all possible CSS 2 Selector Combinations for a DOM element in context.. to Generate All Possible CSS 2 Selector Combinations What would be the best way to generate all possible CSS 2 Selector Combinations for a DOM element in context with the current state of the document Eg For the following MarkUp DOCTYPE html.. such that the ARGUMENT ELEMENT in the above markup is given as an argument to the method it returns all possible CSS 2 Selector combinations for the Argument in form of an array. An optional parameter can be added to the method which will define the..
jQuery Selector: Id Ends With? http://stackoverflow.com/questions/609382/jquery-selector-id-ends-with Selector Id Ends With Is there a selector that I can query for elements with an ID that ends with a given string Say I have a element..
In jQuery, is selecting by class or id faster than selecting by some other attribute? http://stackoverflow.com/questions/6460644/in-jquery-is-selecting-by-class-or-id-faster-than-selecting-by-some-other-attri startTime var n new Date var s n.getTime var diff s startTime return diff script head body h1 jQuery Selector Performance Context vs No Context h1 h2 .someclass h2 span id withoutcontext span ms br br h2 .someclass #somecontainer..
how do I find elements that contain a data-* attribute matching a prefix using jquery http://stackoverflow.com/questions/7602410/how-do-i-find-elements-that-contain-a-data-attribute-matching-a-prefix-using-j jQuery ™s selector capabilities by James Padolsey I need to express something like the Attribute Contains Prefix Selector name value but instead of matching value I need to match against the name of the attribute and not the value of the attribute...
Is there a jQuery selector to get all elements that can get focus? http://stackoverflow.com/questions/7668525/is-there-a-jquery-selector-to-get-all-elements-that-can-get-focus maybe I haven't tested them all. Any element with a tabindex So what about naming all those explicitly in a jQuery Selector 'a href area href input not disabled select not disabled textarea not disabled button not disabled iframe object embed tabindex..
http://stackoverflow.com/questions/841553/jquery-this-child-selector this Child Selector I'm using this on a page jQuery '.class1 a' .click function if .class2 .is hidden .class2 .slideDown slow else .class2..
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