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2014/10/16 ¤W¤È 12:07:03
jquery Programming Glossary: repeatedlyWhat is the cost of '$(this)'? http://stackoverflow.com/questions/10433014/what-is-the-cost-of-this appears The jQuery function is expensive. Calling it repeatedly is extremely inefficient. Well... that is true only for strings..
JavaScript moving element in the DOM http://stackoverflow.com/questions/1363650/javascript-moving-element-in-the-dom '#div3' '#div3' .insertBefore '#div2' If you want to do it repeatedly you'll need to use different selectors since the divs will retain..
http://stackoverflow.com/questions/2596594/jquery-window-width-and-window-height-return-different-values-when-vie not been resized I am writing a site using jquery that repeatedly calls window .width and window .height to position and size..
Which is better: string html generation or jquery DOM element creation? http://stackoverflow.com/questions/2690352/which-is-better-string-html-generation-or-jquery-dom-element-creation you get the benefit of not creating those DOM elements repeatedly just cloning them. In the second test DOM wins out because while..
Cross browsers mult-lines text overflow with ellipsis appended within a width&height fixed div? http://stackoverflow.com/questions/3404508/cross-browsers-mult-lines-text-overflow-with-ellipsis-appended-within-a-widthhe function index text return text.replace W s S '...' It repeatedly tries to remove the last word of the text until it reaches the..
http://stackoverflow.com/questions/3738490/finding-line-wraps textarea ' textarea id mytext ' .val ' When spoken repeatedly often three times in succession blah blah blah Imitative of..
An “if mouseover” or a “do while mouseover” in JavaScript/jQuery http://stackoverflow.com/questions/3966273/an-if-mouseover-or-a-do-while-mouseover-in-javascript-jquery Is there a JavaScript or jQuery solution to run a function repeatedly after setTimeout while the mouse is over a DOM object Otherwise..
Can I declare logic on jQuery for the start and end of a scrolling event? http://stackoverflow.com/questions/4096429/can-i-declare-logic-on-jquery-for-the-start-and-end-of-a-scrolling-event want to avoid the below as it means my logic will be fired repeatedly unnecessarily window .scroll function console.log scrolling..
jQuery/Javascript collision detection http://stackoverflow.com/questions/4230029/jquery-javascript-collision-detection example. you don't have to read the box dimensions repeatedly like I do in my code since they are fixed. You can read them.. change. Therefore those values also do not have to be read repeatedly but can also be stored into variables. you don't have to test..
Trying to select script tags from a jQuery ajax get response http://stackoverflow.com/questions/4430707/trying-to-select-script-tags-from-a-jquery-ajax-get-response scripts under certain circumstances. It also avoids repeatedly inserting evaluating the same script which could potentially..
How to detect if two divs touch with jquery? http://stackoverflow.com/questions/5419134/how-to-detect-if-two-divs-touch-with-jquery detection. If you want to raise an event you have to repeatedly test but it would be be better just to run the function over..
jQuery fadeToggle if currently animated, ignore further input http://stackoverflow.com/questions/5722758/jquery-fadetoggle-if-currently-animated-ignore-further-input when you hover. My issue is that when you hover over them repeatedly say three times they fade in and out three times. I once ran..
Does using $this instead of $(this) provide a performance enhancement? http://stackoverflow.com/questions/5724400/does-using-this-instead-of-this-provide-a-performance-enhancement arise is when a selector rather than a DOM object is repeatedly passed to the jQuery constructor e.g. 'p' . As for the use of..
JQuery - Get the DOM path of the clicked <a> http://stackoverflow.com/questions/5728558/jquery-get-the-dom-path-of-the-clicked-a just use the standard parentNode property of the element repeatedly to walk up the tree until either we run out of parents or we..
How to delay execution in between the following in my javascript http://stackoverflow.com/questions/5990725/how-to-delay-execution-in-between-the-following-in-my-javascript setInterval clearInterval which does the same thing but repeatedly at the interval you specify until you stop it . share improve..
Pass extra parameter to jQuery getJSON() success callback function http://stackoverflow.com/questions/6129145/pass-extra-parameter-to-jquery-getjson-success-callback-function closure work right note that declaring the title variable repeatedly in the loop doesn't work in fact you can think of the variable..
setInterval not working properly on Chrome http://stackoverflow.com/questions/6951727/setinterval-not-working-properly-on-chrome share improve this question I'd favour using setTimeout repeatedly over using setInterval so many things can go wrong with setInterval..
Why should y.innerHTML = x.innerHTML; be avoided? http://stackoverflow.com/questions/7392930/why-should-y-innerhtml-x-innerhtml-be-avoided don't keep an HTML document in memory somewhere and repeatedly modify the HTML based on commands from JavaScript. When a browser..
jQuery not loading on the iPhone http://stackoverflow.com/questions/792585/jquery-not-loading-on-the-iphone
What is the cost of '$(this)'? http://stackoverflow.com/questions/10433014/what-is-the-cost-of-this meta I'll answer my question. In the jQuery tag info this warning appears The jQuery function is expensive. Calling it repeatedly is extremely inefficient. Well... that is true only for strings selectors which get parsed with regex to find out what are..
JavaScript moving element in the DOM http://stackoverflow.com/questions/1363650/javascript-moving-element-in-the-dom this question Trivial with jQuery '#div1' .insertAfter '#div3' '#div3' .insertBefore '#div2' If you want to do it repeatedly you'll need to use different selectors since the divs will retain their ids as they are moved around. function setInterval..
http://stackoverflow.com/questions/2596594/jquery-window-width-and-window-height-return-different-values-when-vie and window .height return different values when viewport has not been resized I am writing a site using jquery that repeatedly calls window .width and window .height to position and size elements based on the viewport size. In troubleshooting I discovered..
Which is better: string html generation or jquery DOM element creation? http://stackoverflow.com/questions/2690352/which-is-better-string-html-generation-or-jquery-dom-element-creation 149ms . However if you can cache the complex fragment you get the benefit of not creating those DOM elements repeatedly just cloning them. In the second test DOM wins out because while the HTML method creates that DOM element collection 5000..
Cross browsers mult-lines text overflow with ellipsis appended within a width&height fixed div? http://stackoverflow.com/questions/3404508/cross-browsers-mult-lines-text-overflow-with-ellipsis-appended-within-a-widthhe p' var divh '#fos' .height while p.outerHeight divh p.text function index text return text.replace W s S '...' It repeatedly tries to remove the last word of the text until it reaches the desired size. Because of the overflow hidden the process..
http://stackoverflow.com/questions/3738490/finding-line-wraps '#mybtn' div '#mydiv' if textarea.length 0 div.length 0 body.empty textarea ' textarea id mytext ' .val ' When spoken repeatedly often three times in succession blah blah blah Imitative of idle meaningless talk used sometimes in a slightly derogatory..
An “if mouseover” or a “do while mouseover” in JavaScript/jQuery http://stackoverflow.com/questions/3966273/an-if-mouseover-or-a-do-while-mouseover-in-javascript-jquery or a &ldquo do while mouseover&rdquo in JavaScript jQuery Is there a JavaScript or jQuery solution to run a function repeatedly after setTimeout while the mouse is over a DOM object Otherwise said is there a JavaScript do while mouseover or if mouseover..
Can I declare logic on jQuery for the start and end of a scrolling event? http://stackoverflow.com/questions/4096429/can-i-declare-logic-on-jquery-for-the-start-and-end-of-a-scrolling-event after the scrolling is finished how can I accomplish this I want to avoid the below as it means my logic will be fired repeatedly unnecessarily window .scroll function console.log scrolling jquery events scrolling share improve this question You..
jQuery/Javascript collision detection http://stackoverflow.com/questions/4230029/jquery-javascript-collision-detection Also note that you can optimize the function for your specific example. you don't have to read the box dimensions repeatedly like I do in my code since they are fixed. You can read them on page load into a variable and then just read the variable.. window . The vertical positions of the car boxes does not change. Therefore those values also do not have to be read repeatedly but can also be stored into variables. you don't have to test whether the little box overlaps with all car boxes at all..
Trying to select script tags from a jQuery ajax get response http://stackoverflow.com/questions/4430707/trying-to-select-script-tags-from-a-jquery-ajax-get-response Denied errors that can occur in Internet Explorer when inserting scripts under certain circumstances. It also avoids repeatedly inserting evaluating the same script which could potentially cause problems if it is within a containing element that you..
How to detect if two divs touch with jquery? http://stackoverflow.com/questions/5419134/how-to-detect-if-two-divs-touch-with-jquery improve this question You're looking for bounding box collision detection. If you want to raise an event you have to repeatedly test but it would be be better just to run the function over all your game objects from your game loop. The sandbox is at..
jQuery fadeToggle if currently animated, ignore further input http://stackoverflow.com/questions/5722758/jquery-fadetoggle-if-currently-animated-ignore-further-input that have a play button that fades in on top of them when you hover. My issue is that when you hover over them repeatedly say three times they fade in and out three times. I once ran into a jQuery function that included an if then statement roughly..
Does using $this instead of $(this) provide a performance enhancement? http://stackoverflow.com/questions/5724400/does-using-this-instead-of-this-provide-a-performance-enhancement to reuse jQuery objects anyway. Where real performance impacts arise is when a selector rather than a DOM object is repeatedly passed to the jQuery constructor e.g. 'p' . As for the use of var again always use var to declare new variables. By doing..
JQuery - Get the DOM path of the clicked <a> http://stackoverflow.com/questions/5728558/jquery-get-the-dom-path-of-the-clicked-a
How to delay execution in between the following in my javascript http://stackoverflow.com/questions/5990725/how-to-delay-execution-in-between-the-following-in-my-javascript
Pass extra parameter to jQuery getJSON() success callback function http://stackoverflow.com/questions/6129145/pass-extra-parameter-to-jquery-getjson-success-callback-function the function was first created. Before we address making the closure work right note that declaring the title variable repeatedly in the loop doesn't work in fact you can think of the variable as essentially being hoisted into the function 's scope for..
setInterval not working properly on Chrome http://stackoverflow.com/questions/6951727/setinterval-not-working-properly-on-chrome slider slideshow.start javascript jquery setinterval share improve this question I'd favour using setTimeout repeatedly over using setInterval so many things can go wrong with setInterval and you don't know how busy the browser is and whether..
Why should y.innerHTML = x.innerHTML; be avoided? http://stackoverflow.com/questions/7392930/why-should-y-innerhtml-x-innerhtml-be-avoided the result of a misapprehension of what a browser does. Browsers don't keep an HTML document in memory somewhere and repeatedly modify the HTML based on commands from JavaScript. When a browser first loads a page it parses the HTML document and turns..
jQuery not loading on the iPhone http://stackoverflow.com/questions/792585/jquery-not-loading-on-the-iphone
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