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2014/10/16 ¤W¤È 12:02:11
jquery Programming Glossary: benchmarkPerformance of OR operation ( || ) vs inArray() http://stackoverflow.com/questions/10479056/performance-of-or-operation-vs-inarray the end nobody will notice the difference. Here's a short benchmark each with 1 million iterations 5.4829950332642 in_array the.. definition value in 'a' 0 'b' 0 'c' 0 Here's a JSPerf benchmark for the various solutions http jsperf.com inarray vs or but..
When do you use DOM-based Generation vs. using strings/innerHTML/JQuery to generate DOM content? http://stackoverflow.com/questions/11550461/when-do-you-use-dom-based-generation-vs-using-strings-innerhtml-jquery-to-gener readable. None of the two is faster in standard situations benchmark results vary wide. Personally I don't like direct innerHTML..
Jquery performance: hide() vs is(':visible') - which is faster? http://stackoverflow.com/questions/12312047/jquery-performance-hide-vs-isvisible-which-is-faster for brevity and clarity . Take a look at this updated benchmark test case . First it should be noted that the runtime effect..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events to the new page occurs This is a average page transition benchmark Page load and processing 3ms Page enhance 45ms Transition 604ms.. 2 3x faster then .live . Take a look at this event binding benchmark http jsperf.com jquery live vs delegate vs on 34 everything.. an excellent script made for jQuery Mobile page events benchmarking. It can be found here https github.com jquery jquery mobile..
How should I add multiple identical elements to a div with jQuery http://stackoverflow.com/questions/201530/how-should-i-add-multiple-identical-elements-to-a-div-with-jquery Resig explains the technique and includes a performance benchmark http ejohn.org blog dom documentfragments var i 10 fragment..
What happened to Dojo in 2008? http://stackoverflow.com/questions/2450696/what-happened-to-dojo-in-2008 level. We love jQuery and wish it the best. It is the benchmark to compare our efforts in building other toolkits. share improve..
Is Subtracting Zero some sort of JavaScript performance trick? http://stackoverflow.com/questions/2665984/is-subtracting-zero-some-sort-of-javascript-performance-trick improve this question Based on a few quick and dirty benchmark runs 1234 0 was about 50 faster than parseInt 1234 and 10 faster.. faster than 1234 in Firefox 3.6. Update My quick and dirty benchmark was not very useful because it was just converting the string..
jQuery document.createElement equivalent? http://stackoverflow.com/questions/268490/jquery-document-createelement-equivalent new elements and which is best . I put together a small benchmark and here's roughly the results of repeating the above options.. elements . Update 2 Updated for jQuery 1.7.2 and put the benchmark on JSPerf which is probably a bit more scientific than my primitive.. which is probably a bit more scientific than my primitive benchmarks plus it can be crowdsourced now http jsperf.com jquery vs createelement..
Most appropriate way to get this: $($(“.answer”)[0]) http://stackoverflow.com/questions/4837876/most-appropriate-way-to-get-this-answer0 have not yet found a reliable cross browser multi document benchmark that proves this to be true. And in some cases you cannot use..
Switch statement for greater-than/less-than http://stackoverflow.com/questions/6665997/switch-statement-for-greater-than-less-than to put it in a comment but I thought it was better to benchmark it and share the results. You can test it yourself . Below is..
How to stop intense Javascript loop from freezing the browser http://stackoverflow.com/questions/714942/how-to-stop-intense-javascript-loop-from-freezing-the-browser index 100 0 setTimeout process 5 process I would also benchmark the different parts of the xml processing to see if there is.. there is a bottleneck somewhere that may be fixed. You can benchmark in firefox using firebug's profiler and by writing out to the.. profiler and by writing out to the console like this start benchmark var t new Date some xml processing console.log Time to process..
http://stackoverflow.com/questions/8789362/parent-faster-alternative any other alternative I am looking for something like benchmarks style which shows what's faster. Here is an example of the.. http jsperf.com parents method . According to this benchmark my method is roughly 100x faster than your method. Method see..
Performance of OR operation ( || ) vs inArray() http://stackoverflow.com/questions/10479056/performance-of-or-operation-vs-inarray a file access database access network access etc.. So in the end nobody will notice the difference. Here's a short benchmark each with 1 million iterations 5.4829950332642 in_array the array is recreated everytime 2.9785749912262 in_array the array.. but the object definition is less readable than the array definition value in 'a' 0 'b' 0 'c' 0 Here's a JSPerf benchmark for the various solutions http jsperf.com inarray vs or but again the rather big performance difference is negligible in..
When do you use DOM-based Generation vs. using strings/innerHTML/JQuery to generate DOM content? http://stackoverflow.com/questions/11550461/when-do-you-use-dom-based-generation-vs-using-strings-innerhtml-jquery-to-gener the DOM approach is cleaner. Mostly html strings are more readable. None of the two is faster in standard situations benchmark results vary wide. Personally I don't like direct innerHTML for a few reasons which are outlined well in these two answers..
Jquery performance: hide() vs is(':visible') - which is faster? http://stackoverflow.com/questions/12312047/jquery-performance-hide-vs-isvisible-which-is-faster the fastest option anymore though it's probably still preferable for brevity and clarity . Take a look at this updated benchmark test case . First it should be noted that the runtime effect of this will be infinitesimal and you would be hard pressed..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events styled A transition slide pop etc from the existing page to the new page occurs This is a average page transition benchmark Page load and processing 3ms Page enhance 45ms Transition 604ms Total time 670ms These values are in milliseconds. So as.. with it. Instead of .live you should use .on . .on is about 2 3x faster then .live . Take a look at this event binding benchmark http jsperf.com jquery live vs delegate vs on 34 everything will be clear from there. Benchmarking There's an excellent.. on 34 everything will be clear from there. Benchmarking There's an excellent script made for jQuery Mobile page events benchmarking. It can be found here https github.com jquery jquery mobile blob master tools page change time.js . But before you do..
How should I add multiple identical elements to a div with jQuery http://stackoverflow.com/questions/201530/how-should-i-add-multiple-identical-elements-to-a-div-with-jquery to build up a DOM fragment first before inserting it. John Resig explains the technique and includes a performance benchmark http ejohn.org blog dom documentfragments var i 10 fragment document.createDocumentFragment div document.createElement 'div'..
What happened to Dojo in 2008? http://stackoverflow.com/questions/2450696/what-happened-to-dojo-in-2008
Is Subtracting Zero some sort of JavaScript performance trick? http://stackoverflow.com/questions/2665984/is-subtracting-zero-some-sort-of-javascript-performance-trick rather than a parseInt or parseFloat javascript jquery share improve this question Based on a few quick and dirty benchmark runs 1234 0 was about 50 faster than parseInt 1234 and 10 faster than 1234 in Firefox 3.6. Update My quick and dirty benchmark.. runs 1234 0 was about 50 faster than parseInt 1234 and 10 faster than 1234 in Firefox 3.6. Update My quick and dirty benchmark was not very useful because it was just converting the string 1234 in a loop. I tried again using a random list of numbers..
jQuery document.createElement equivalent? http://stackoverflow.com/questions/268490/jquery-document-createelement-equivalent div div vs document.createElement 'div' as a way of creating new elements and which is best . I put together a small benchmark and here's roughly the results of repeating the above options 100 000 times jQuery 1.4 1.5 1.6 Chrome 11 Firefox 4 IE9.. jQuery equate to about an extra 3 milliseconds per thousand elements . Update 2 Updated for jQuery 1.7.2 and put the benchmark on JSPerf which is probably a bit more scientific than my primitive benchmarks plus it can be crowdsourced now http jsperf.com..
Most appropriate way to get this: $($(“.answer”)[0]) http://stackoverflow.com/questions/4837876/most-appropriate-way-to-get-this-answer0 the method versions and the logic makes some sense but I have not yet found a reliable cross browser multi document benchmark that proves this to be true. And in some cases you cannot use the selector as you have a jQuery object resulting from chained..
Switch statement for greater-than/less-than http://stackoverflow.com/questions/6665997/switch-statement-for-greater-than-less-than some tings that I know where bad for performance. I was going to put it in a comment but I thought it was better to benchmark it and share the results. You can test it yourself . Below is my results ymmv normalized after the fastest operation in..
How to stop intense Javascript loop from freezing the browser http://stackoverflow.com/questions/714942/how-to-stop-intense-javascript-loop-from-freezing-the-browser xmlElements index Perform xml processing if index 1 length index 100 0 setTimeout process 5 process I would also benchmark the different parts of the xml processing to see if there is a bottleneck somewhere that may be fixed. You can benchmark.. the different parts of the xml processing to see if there is a bottleneck somewhere that may be fixed. You can benchmark in firefox using firebug's profiler and by writing out to the console like this start benchmark var t new Date some xml.. may be fixed. You can benchmark in firefox using firebug's profiler and by writing out to the console like this start benchmark var t new Date some xml processing console.log Time to process new Date t ms Hope this helps. share improve this answer..
http://stackoverflow.com/questions/8789362/parent-faster-alternative parent up to 3 times but pretty much on every function Is there any other alternative I am looking for something like benchmarks style which shows what's faster. Here is an example of the tree div id 6179827893 class dashdiv div class buttons li a.. You've got a few options to achieve the same effect. Benchmark http jsperf.com parents method . According to this benchmark my method is roughly 100x faster than your method. Method see below Operations per second higher is better parentNode3x..
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