2014/10/16 上午 12:03:02
jquery Programming Glossary: document.queryselectorjQuery 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.. as far as I know you can achieve the same result with document.querySelector or document.querySelectorAll which are supported in ie8 and.. can achieve the same result with document.querySelector or document.querySelectorAll which are supported in ie8 and above . So the question is..
http://stackoverflow.com/questions/13402776/why-am-i-able-to-use-jquery-syntax-in-chromes-js-console-when-current-page-does on Chrome 23 release it has been changed to an alias to document.querySelector . So your code is the equivalent of document.querySelector 'body'..
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 is used to retrieve an element by its id for example document.querySelector '#elementID' as opposed to the method by which an element is..
Android browser: touchcancel being fired althought touchmove has preventDefault http://stackoverflow.com/questions/15944197/android-browser-touchcancel-being-fired-althought-touchmove-has-preventdefault delay window.addEventListener 'load' function var target document.querySelector '#target' var status document.querySelector '#status' target.addEventListener.. var target document.querySelector '#target' var status document.querySelector '#status' target.addEventListener 'touchstart' function event..
Performance: Pure CSS vs jQuery http://stackoverflow.com/questions/16675952/performance-pure-css-vs-jquery implemented in Sizzle a JavaScript selector library while document.querySelector is a DOM method that allows you to use a browser's natively..
Selecting element by data attribute http://stackoverflow.com/questions/2487747/selecting-element-by-data-attribute Note that for compatibility with the Selectors API document.querySelector all the quotes around the attribute value 22 may not be omitted..
Can you use CSS3 to transition from height:0 to the variable height of content? http://stackoverflow.com/questions/3149419/can-you-use-css3-to-transition-from-height0-to-the-variable-height-of-content growDiv.style.height 0 else var wrapper document.querySelector '.measuringWrapper' growDiv.style.height wrapper.clientHeight..
Can I use javascript to dynamically change a video's source? http://stackoverflow.com/questions/3732562/can-i-use-javascript-to-dynamically-change-a-videos-source you can just set the src attribute on the source element document.querySelector #myVideoTag source .src http example.com new_url.mp4 Or using..
How to tell jQuery to stop searching DOM when the first element is found? http://stackoverflow.com/questions/3950888/how-to-tell-jquery-to-stop-searching-dom-when-the-first-element-is-found function selector if 'querySelector' in document return document.querySelector selector else return selector .first however the amount you'll..
Bootstrap CSS Active Navigation http://stackoverflow.com/questions/9301507/bootstrap-css-active-navigation 'active' e.preventDefault In JavaScript var menu document.querySelector '.menu' var anchors menu.getElementsByTagName 'a' for var i..
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.. that would 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.. 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 strongest asset can be..
http://stackoverflow.com/questions/13402776/why-am-i-able-to-use-jquery-syntax-in-chromes-js-console-when-current-page-does
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 querySelector and querySelectorAll methods CSS style notation is used to retrieve an element by its id for example document.querySelector '#elementID' as opposed to the method by which an element is retrieved by its id under document.getElementById 'elementID'..
Android browser: touchcancel being fired althought touchmove has preventDefault http://stackoverflow.com/questions/15944197/android-browser-touchcancel-being-fired-althought-touchmove-has-preventdefault new Date .getTime while new Date .getTime startTime delay window.addEventListener 'load' function var target document.querySelector '#target' var status document.querySelector '#status' target.addEventListener 'touchstart' function event haltEvent event.. startTime delay window.addEventListener 'load' function var target document.querySelector '#target' var status document.querySelector '#status' target.addEventListener 'touchstart' function event haltEvent event status.innerHTML ' touchstart ' true target.addEventListener..
Performance: Pure CSS vs jQuery http://stackoverflow.com/questions/16675952/performance-pure-css-vs-jquery versus the native Selectors API. jQuery selectors are implemented in Sizzle a JavaScript selector library while document.querySelector is a DOM method that allows you to use a browser's natively implemented selector engine directly from a script. share improve..
Selecting element by data attribute http://stackoverflow.com/questions/2487747/selecting-element-by-data-attribute which jQuery version you 胩e using this might give faulty results. Note that for compatibility with the Selectors API document.querySelector all the quotes around the attribute value 22 may not be omitted in this case . Also if you work with data attributes a lot..
Can you use CSS3 to transition from height:0 to the variable height of content? http://stackoverflow.com/questions/3149419/can-you-use-css3-to-transition-from-height0-to-the-variable-height-of-content growDiv var growDiv document.getElementById 'grow' if growDiv.clientHeight growDiv.style.height 0 else var wrapper document.querySelector '.measuringWrapper' growDiv.style.height wrapper.clientHeight px script input type button onclick growDiv value grow div..
Can I use javascript to dynamically change a video's source? http://stackoverflow.com/questions/3732562/can-i-use-javascript-to-dynamically-change-a-videos-source jquery video html5 share improve this question Sure you can just set the src attribute on the source element document.querySelector #myVideoTag source .src http example.com new_url.mp4 Or using jQuery instead of standard DOM methods #myVideoTag source..
How to tell jQuery to stop searching DOM when the first element is found? http://stackoverflow.com/questions/3950888/how-to-tell-jquery-to-stop-searching-dom-when-the-first-element-is-found method which is built to select only the first match .getFirst function selector if 'querySelector' in document return document.querySelector selector else return selector .first however the amount you'll save by doing this is much smaller than the amount you save..
Bootstrap CSS Active Navigation http://stackoverflow.com/questions/9301507/bootstrap-css-active-navigation function e var this this if this.hasClass 'active' this.addClass 'active' e.preventDefault In JavaScript var menu document.querySelector '.menu' var anchors menu.getElementsByTagName 'a' for var i 0 i anchors.length i 1 anchors i .addEventListener 'click' function..
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