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2014/10/16 ¤W¤È 12:06:06
jquery Programming Glossary: overheadWhy define anonymous function and pass it jQuery as the argument? http://stackoverflow.com/questions/10371539/why-define-anonymous-function-and-pass-it-jquery-as-the-argument to the global variable. This helps reduce the amount of overhead of looking up the variable and allows better compression optimization..
jQuery vs document.querySelectorAll http://stackoverflow.com/questions/11503534/jquery-vs-document-queryselectorall in ie8 and above . So the question is why 'risk' jQuery's overhead if it's strongest asset can be achieved with pure javascript.. the power of jQuerys Selector engine without the nasty overhead. EDIT Just for the record I'm a huge vanilla javacript fan...
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events This is best solution because you don't have processing overhead like when removing events with off method. Working jsFiddle..
jQuery Mobile: Markup Enhancement of dynamically added content http://stackoverflow.com/questions/14550396/jquery-mobile-markup-enhancement-of-dynamically-added-content used to stretch img to full content height img tag has an overhead of 3px. Methods of markup enhancement prevention This can be..
http://stackoverflow.com/questions/1883611/should-i-use-jquery-each in most cases it is using a basic for loop where the only overhead is really just the callback itself. Shouldn't make a difference.. EDIT This is with the realization that selector overhead has already occurred and you are given a populated array object..
Directly accessing server database via Ajax (without PHP or some other intermediate) http://stackoverflow.com/questions/2256310/directly-accessing-server-database-via-ajax-without-php-or-some-other-intermedi of the system as a whole. You may feel it is less overhead because there's one component less ie webserver scripting language..
What is the simplest jQuery way to have a 'position:fixed' (always at top) div? http://stackoverflow.com/questions/257250/what-is-the-simplest-jquery-way-to-have-a-positionfixed-always-at-top-div
What are the typical reasons Javascript developed on Firefox fails on IE? [closed] http://stackoverflow.com/questions/2599020/what-are-the-typical-reasons-javascript-developed-on-firefox-fails-on-ie charAt with strings in IE though there's some initial overhead when split is first called. Commas before the end of objects..
How to rotate a div using jQuery [closed] http://stackoverflow.com/questions/3020904/how-to-rotate-a-div-using-jquery maximum compatibility or more options. But for minimal overhead I suggest the above function. It will work IE9 Chrome Firefox..
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 truncation on the server side that leaves only a small overhead then it will run quicker . Again this is not a complete solution..
http://stackoverflow.com/questions/512257/jquery-modal-boxes-and-iframe each user but this will not scale well and it is a lot of overhead data. I found some code about this on Google Code but just can't..
Why don't changes to jQuery $.fn.data() update the corresponding html 5 data-* attributes? http://stackoverflow.com/questions/5507718/why-dont-changes-to-jquery-fn-data-update-the-corresponding-html-5-data-a For that reason it makes sense to avoid the performance overhead of accessing the DOM for every .data set modify operation .data..
DOM Mutation event in JQuery or vanilla Javascript http://stackoverflow.com/questions/7692730/dom-mutation-event-in-jquery-or-vanilla-javascript periodically check for the div but I don't really like the overhead that this would impose. javascript jquery dom mutation events..
http://stackoverflow.com/questions/8180890/drop-down-with-free-input down element. I tried Jquery Autocomplete but it adds some overhead as it also provide autocomplete feature. I more specifically..
event delegation vs direct binding when adding complex elements to a page http://stackoverflow.com/questions/8827430/event-delegation-vs-direct-binding-when-adding-complex-elements-to-a-page share improve this question You will create less CPU overhead in binding the events using root element .on event selector.. takes time... . That being said you will incur more CPU overhead when the actual events occur as they have to bubble up the DOM.. binding and let the event triggering create some extra CPU overhead from all the bubbling. Note that root element .on event selector..
Get variable name. javascript “reflection” http://stackoverflow.com/questions/9795773/get-variable-name-javascript-reflection minified function changed your variable names. It adds overhead even a minifier can't shorten function return x to be smaller..
Why define anonymous function and pass it jQuery as the argument? http://stackoverflow.com/questions/10371539/why-define-anonymous-function-and-pass-it-jquery-as-the-argument jQuery in to the parenthesis is to provide local scoping to the global variable. This helps reduce the amount of overhead of looking up the variable and allows better compression optimization for minifiers in some cases. Immediately invoking..
jQuery vs document.querySelectorAll http://stackoverflow.com/questions/11503534/jquery-vs-document-queryselectorall 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 achieved with pure javascript I know jQuery has more than just css selectors for example.. can use the one jQuery itself is using Sizzle That way you have the power of jQuerys Selector engine without the nasty overhead. EDIT Just for the record I'm a huge vanilla javacript fan. Nonetheless it's a fact that you sometimes need 10 lines of..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events document ready so there's no way events will be bound again. This is best solution because you don't have processing overhead like when removing events with off method. Working jsFiddle example http jsfiddle.net Gajotres AAFH8 This working solution..
jQuery Mobile: Markup Enhancement of dynamically added content http://stackoverflow.com/questions/14550396/jquery-mobile-markup-enhancement-of-dynamically-added-content used to stretch that same content. Unfortunately it cant be used to stretch img to full content height img tag has an overhead of 3px. Methods of markup enhancement prevention This can be done in few ways sometimes you will need to combine them to..
http://stackoverflow.com/questions/1883611/should-i-use-jquery-each false value object i return object As you can trace and see in most cases it is using a basic for loop where the only overhead is really just the callback itself. Shouldn't make a difference in performance. EDIT This is with the realization that selector..
Directly accessing server database via Ajax (without PHP or some other intermediate) http://stackoverflow.com/questions/2256310/directly-accessing-server-database-via-ajax-without-php-or-some-other-intermedi you take away an important source of flexibility and scalability of the system as a whole. You may feel it is less overhead because there's one component less ie webserver scripting language to think about but in reality it's still there it just..
What is the simplest jQuery way to have a 'position:fixed' (always at top) div? http://stackoverflow.com/questions/257250/what-is-the-simplest-jquery-way-to-have-a-positionfixed-always-at-top-div
What are the typical reasons Javascript developed on Firefox fails on IE? [closed] http://stackoverflow.com/questions/2599020/what-are-the-typical-reasons-javascript-developed-on-firefox-fails-on-ie accessing items in arrays is significantly faster than using charAt with strings in IE though there's some initial overhead when split is first called. Commas before the end of objects e.g. 'foo' 'bar' aren't allowed in IE. Element specific issues..
How to rotate a div using jQuery [closed] http://stackoverflow.com/questions/3020904/how-to-rotate-a-div-using-jquery with support for IE8. It may be worth using if you want maximum compatibility or more options. But for minimal overhead I suggest the above function. It will work IE9 Chrome Firefox Opera and many others. Bobby... This is for the people who..
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 without the ... of course . If you combine this with a sensible truncation on the server side that leaves only a small overhead then it will run quicker . Again this is not a complete solution just an idea. UPDATE Added a jsFiddle Demo . share improve..
http://stackoverflow.com/questions/512257/jquery-modal-boxes-and-iframe can be done if i have the user info form as a hidden div for each user but this will not scale well and it is a lot of overhead data. I found some code about this on Google Code but just can't get it to work possibly different simple modal version..
Why don't changes to jQuery $.fn.data() update the corresponding html 5 data-* attributes? http://stackoverflow.com/questions/5507718/why-dont-changes-to-jquery-fn-data-update-the-corresponding-html-5-data-a in using .data to access set modify data on DOM elements. For that reason it makes sense to avoid the performance overhead of accessing the DOM for every .data set modify operation .data stores its values in jQuery.cache internally . If you want..
DOM Mutation event in JQuery or vanilla Javascript http://stackoverflow.com/questions/7692730/dom-mutation-event-in-jquery-or-vanilla-javascript has been inserted. I know I can use some kind of timer to periodically check for the div but I don't really like the overhead that this would impose. javascript jquery dom mutation events share improve this question This is certainly a hack..
http://stackoverflow.com/questions/8180890/drop-down-with-free-input or enter any other value. Its kind of input box drop down element. I tried Jquery Autocomplete but it adds some overhead as it also provide autocomplete feature. I more specifically client don't want to add autocomplete feature.Is there any..
event delegation vs direct binding when adding complex elements to a page http://stackoverflow.com/questions/8827430/event-delegation-vs-direct-binding-when-adding-complex-elements-to-a-page javascript jquery javascript events event delegation share improve this question You will create less CPU overhead in binding the events using root element .on event selector since you will be binding to a single root element instead of.. of potentially many more single descendant elements each bind takes time... . That being said you will incur more CPU overhead when the actual events occur as they have to bubble up the DOM to the root element. Sort story delegate saves CPU when binding.. operation you will probably want to delegate the event binding and let the event triggering create some extra CPU overhead from all the bubbling. Note that root element .on event selector event handler is the same as root element .delegate selector..
Get variable name. javascript “reflection” http://stackoverflow.com/questions/9795773/get-variable-name-javascript-reflection a message that variable a had an incorrect value because your minified function changed your variable names. It adds overhead even a minifier can't shorten function return x to be smaller than x . Finally it's complicated. 'nuff said. share improve..
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