pax_global_header00006660000000000000000000000064127372057230014522gustar00rootroot0000000000000052 comment=27ac2753f95c4539e6a559a454cc75566fb69dd9 jquery-throttle-debounce-1.1+dfsg.1/000077500000000000000000000000001273720572300174055ustar00rootroot00000000000000jquery-throttle-debounce-1.1+dfsg.1/LICENSE-GPL000066400000000000000000000353721273720572300210440ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. 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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. jquery-throttle-debounce-1.1+dfsg.1/README.markdown000066400000000000000000000046351273720572300221160ustar00rootroot00000000000000# jQuery jQuery throttle / debounce: Sometimes, less is more! # [http://benalman.com/projects/jquery-throttle-debounce-plugin/](http://benalman.com/projects/jquery-throttle-debounce-plugin/) Version: 1.1, Last updated: 3/7/2010 jQuery throttle / debounce allows you to rate-limit your functions in multiple useful ways. Passing a delay and callback to `$.throttle` returns a new function that will execute no more than once every `delay` milliseconds. Passing a delay and callback to `$.debounce` returns a new function that will execute only once, coalescing multiple sequential calls into a single execution at either the very beginning or end. Visit the [project page](http://benalman.com/projects/jquery-throttle-debounce-plugin/) for more information and usage examples! ## Documentation ## [http://benalman.com/code/projects/jquery-throttle-debounce/docs/](http://benalman.com/code/projects/jquery-throttle-debounce/docs/) ## Examples ## These working examples, complete with fully commented code, illustrate a few ways in which this plugin can be used. [http://benalman.com/code/projects/jquery-throttle-debounce/examples/throttle/](http://benalman.com/code/projects/jquery-throttle-debounce/examples/throttle/) [http://benalman.com/code/projects/jquery-throttle-debounce/examples/debounce/](http://benalman.com/code/projects/jquery-throttle-debounce/examples/debounce/) ## Support and Testing ## Information about what version or versions of jQuery this plugin has been tested with, what browsers it has been tested in, and where the unit tests reside (so you can test it yourself). ### jQuery Versions ### none, 1.3.2, 1.4.2 ### Browsers Tested ### Internet Explorer 6-8, Firefox 2-3.6, Safari 3-4, Chrome, Opera 9.6-10.1. ### Unit Tests ### [http://benalman.com/code/projects/jquery-throttle-debounce/unit/](http://benalman.com/code/projects/jquery-throttle-debounce/unit/) ## Release History ## 1.1 - (3/7/2010) Fixed a bug in jQuery.throttle where trailing callbacks executed later than they should. Reworked a fair amount of internal logic as well. 1.0 - (3/6/2010) Initial release as a stand-alone project. Migrated over from jquery-misc repo v0.4 to jquery-throttle repo v1.0, added the no_trailing throttle parameter and debounce functionality. ## License ## Copyright (c) 2010 "Cowboy" Ben Alman Dual licensed under the MIT and GPL licenses. [http://benalman.com/about/license/](http://benalman.com/about/license/) jquery-throttle-debounce-1.1+dfsg.1/examples/000077500000000000000000000000001273720572300212235ustar00rootroot00000000000000jquery-throttle-debounce-1.1+dfsg.1/examples/config.php000066400000000000000000000011231273720572300231760ustar00rootroot00000000000000 Project Home, Documentation, Source jquery-throttle-debounce-1.1+dfsg.1/examples/debounce/000077500000000000000000000000001273720572300230075ustar00rootroot00000000000000jquery-throttle-debounce-1.1+dfsg.1/examples/debounce/index.php000066400000000000000000000075171273720572300246410ustar00rootroot00000000000000 $(function(){ var default_text = $('#text-type').text(), text_counter_1 = 0, text_counter_2 = 0; // This function is not debounced, but instead bound directly to the event. function text_1() { var val = $(this).val(), html = 'Not-debounced AJAX request executed: ' + text_counter_1++ + ' times.' + ( val ? ' Text: ' + val : '' ); $('#text-type-1').html( html ); }; // This function is debounced, and the new, debounced, function is bound to // the event. Note that in jQuery 1.4+ a reference to either the original or // debounced function can be passed to .unbind to unbind the function. function text_2() { var val = $(this).val(), html = 'Debounced AJAX request executed: ' + text_counter_2++ + ' times.' + ( val ? ' Text: ' + val : '' ); $('#text-type-2').html( html ); }; // Bind the not-at-all debounced handler to the keyup event. $('input.text').keyup( text_1 ); // Bind the debounced handler to the keyup event. $('input.text').keyup( $.debounce( 250, text_2 ) ); // This is the line you want! // Trigger the callbacks once to show some initial (zero) values. text_1(); text_2(); });

Using jQuery throttle / debounce, you can pass a delay and function to $.debounce to get a new function, that when called repetitively, executes the original function just once per "bunch" of calls.

This can be especially useful for rate limiting execution of handlers on events that will trigger AJAX requests. Just take a look at this example to see for yourself!

Typing into a textfield

Give this "pretend autocomplete" field a try. After typing a sentence you'll see why debouncing is a good idea!

The real-world simulation

(No, there is no actual AJAX request happening here, but if there was, that not-debounced version would be killing your server)

The code
jquery-throttle-debounce-1.1+dfsg.1/examples/donate.gif000066400000000000000000000024031273720572300231630ustar00rootroot00000000000000GIF89aJ6#Px+{+XI=AAf ( $ Fw [,z#2)JH2\UJl=:2;WVC#f 7u7DE5mreȨ}c u:j'ffpZD4u eVJ${! svi7||.)&%J98E>g%K5j=/7QD t{-rG7g%$^ ma (nA3%uH8&~& C3xk1lg( x B6jjyy1__#(aQylzzґUR N)A4ϑ\!,J)w+mixREQIx{E)E~žnpIt?([(???ff( _sR`RIlRNʚB(4&€?IrDWTq12%8@%,tR H 1dm\y#A@ɂ*(3cABx̘aL3SNT ?,dʔ ʔB d1T`dr\c` hE,hDAxxxJ1)b0' P[ u >hB& 4q㏇||Ē \8?A<ѢqmpĀ^@MPDo, V '&pytp},P@-`BKpz"<Dh@ |dhؕv,,Z\: x1%8w@`4xbgѐK@@. @T~,ђݍ֒~Dp%=AAƣD Ben Alman » <?= $shell['title1'] ?><? if ( $shell['title2'] ) { print ' » ' . $shell['title2']; } ?><? if ( $shell['title3'] ) { print ' » ' . $shell['title3']; } ?>
$title
"; } } $base = ''; draw_shell(); } ?> jquery-throttle-debounce-1.1+dfsg.1/examples/throttle/000077500000000000000000000000001273720572300230705ustar00rootroot00000000000000jquery-throttle-debounce-1.1+dfsg.1/examples/throttle/index.php000066400000000000000000000127051273720572300247150ustar00rootroot00000000000000 $(function(){ var counter_1 = 0, counter_2 = 0 last_time_1 = +new Date(), last_time_2 = +new Date(); // This function is not throttled, but instead bound directly to the event. function resize_1() { var now = +new Date(), html = 'resize handler executed: ' + counter_1++ + ' times' + ' (' + ( now - last_time_1 ) + 'ms since previous execution)' + '
window dimensions: ' + $(window).width() + 'x' + $(window).height(); last_time_1 = now; $('#text-resize-1').html( html ); }; // This function is throttled, and the new, throttled, function is bound to // the event. Note that in jQuery 1.4+ a reference to either the original or // throttled function can be passed to .unbind to unbind the function. function resize_2() { var now = +new Date(), html = 'throttled resize handler executed: ' + counter_2++ + ' times' + ' (' + ( now - last_time_2 ) + 'ms since previous execution)' + '
window dimensions: ' + $(window).width() + 'x' + $(window).height(); last_time_2 = now; $('#text-resize-2').html( html ); }; // Bind the not-at-all throttled handler to the resize event. $(window).resize( resize_1 ); // Bind the throttled handler to the resize event. $(window).resize( $.throttle( 250, resize_2 ) ); // This is the line you want! }); $(function(){ var counter_1 = 0, counter_2 = 0 last_time_1 = +new Date(), last_time_2 = +new Date(); // This function is not throttled, but instead bound directly to the event. function scroll_1() { var now = +new Date(), html = 'scroll handler executed: ' + counter_1++ + ' times' + ' (' + ( now - last_time_1 ) + 'ms since previous execution)' + '
window scrollLeft: ' + $(window).scrollLeft() + ', scrollTop: ' + $(window).scrollTop(); last_time_1 = now; $('#text-scroll-1').html( html ); }; // This function is throttled, and the new, throttled, function is bound to // the event. Note that in jQuery 1.4+ a reference to either the original or // throttled function can be passed to .unbind to unbind the function. function scroll_2() { var now = +new Date(), html = 'throttled scroll handler executed: ' + counter_2++ + ' times' + ' (' + ( now - last_time_2 ) + 'ms since previous execution)' + '
window scrollLeft: ' + $(window).scrollLeft() + ', scrollTop: ' + $(window).scrollTop(); last_time_2 = now; $('#text-scroll-2').html( html ); }; // Bind the not-at-all throttled handler to the scroll event. $(window).scroll( scroll_1 ); // Bind the throttled handler to the scroll event. $(window).scroll( $.throttle( 250, scroll_2 ) ); // This is the line you want! });

Using jQuery throttle / debounce, you can pass a delay and function to $.throttle to get a new function, that when called repetitively, executes the original function (in the same context and with all arguments passed through) no more than once every delay milliseconds.

This can be especially useful for rate limiting execution of handlers on events like resize and scroll. Just take a look at the examples to see for yourself!

Window resize (some browsers fire this event continually)

The code

Window scroll (some browsers fire this event continually)

The code
jquery-throttle-debounce-1.1+dfsg.1/jquery.ba-throttle-debounce.js000066400000000000000000000240161273720572300252730ustar00rootroot00000000000000/*! * jQuery throttle / debounce - v1.1 - 3/7/2010 * http://benalman.com/projects/jquery-throttle-debounce-plugin/ * * Copyright (c) 2010 "Cowboy" Ben Alman * Dual licensed under the MIT and GPL licenses. * http://benalman.com/about/license/ */ // Script: jQuery throttle / debounce: Sometimes, less is more! // // *Version: 1.1, Last updated: 3/7/2010* // // Project Home - http://benalman.com/projects/jquery-throttle-debounce-plugin/ // GitHub - http://github.com/cowboy/jquery-throttle-debounce/ // Source - http://github.com/cowboy/jquery-throttle-debounce/raw/master/jquery.ba-throttle-debounce.js // (Minified) - http://github.com/cowboy/jquery-throttle-debounce/raw/master/jquery.ba-throttle-debounce.min.js (0.7kb) // // About: License // // Copyright (c) 2010 "Cowboy" Ben Alman, // Dual licensed under the MIT and GPL licenses. // http://benalman.com/about/license/ // // About: Examples // // These working examples, complete with fully commented code, illustrate a few // ways in which this plugin can be used. // // Throttle - http://benalman.com/code/projects/jquery-throttle-debounce/examples/throttle/ // Debounce - http://benalman.com/code/projects/jquery-throttle-debounce/examples/debounce/ // // About: Support and Testing // // Information about what version or versions of jQuery this plugin has been // tested with, what browsers it has been tested in, and where the unit tests // reside (so you can test it yourself). // // jQuery Versions - none, 1.3.2, 1.4.2 // Browsers Tested - Internet Explorer 6-8, Firefox 2-3.6, Safari 3-4, Chrome 4-5, Opera 9.6-10.1. // Unit Tests - http://benalman.com/code/projects/jquery-throttle-debounce/unit/ // // About: Release History // // 1.1 - (3/7/2010) Fixed a bug in where trailing callbacks // executed later than they should. Reworked a fair amount of internal // logic as well. // 1.0 - (3/6/2010) Initial release as a stand-alone project. Migrated over // from jquery-misc repo v0.4 to jquery-throttle repo v1.0, added the // no_trailing throttle parameter and debounce functionality. // // Topic: Note for non-jQuery users // // jQuery isn't actually required for this plugin, because nothing internal // uses any jQuery methods or properties. jQuery is just used as a namespace // under which these methods can exist. // // Since jQuery isn't actually required for this plugin, if jQuery doesn't exist // when this plugin is loaded, the method described below will be created in // the `Cowboy` namespace. Usage will be exactly the same, but instead of // $.method() or jQuery.method(), you'll need to use Cowboy.method(). (function(window,undefined){ '$:nomunge'; // Used by YUI compressor. // Since jQuery really isn't required for this plugin, use `jQuery` as the // namespace only if it already exists, otherwise use the `Cowboy` namespace, // creating it if necessary. var $ = window.jQuery || window.Cowboy || ( window.Cowboy = {} ), // Internal method reference. jq_throttle; // Method: jQuery.throttle // // Throttle execution of a function. Especially useful for rate limiting // execution of handlers on events like resize and scroll. If you want to // rate-limit execution of a function to a single time, see the // method. // // In this visualization, | is a throttled-function call and X is the actual // callback execution: // // > Throttled with `no_trailing` specified as false or unspecified: // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| // > X X X X X X X X X X X X // > // > Throttled with `no_trailing` specified as true: // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| // > X X X X X X X X X X // // Usage: // // > var throttled = jQuery.throttle( delay, [ no_trailing, ] callback ); // > // > jQuery('selector').bind( 'someevent', throttled ); // > jQuery('selector').unbind( 'someevent', throttled ); // // This also works in jQuery 1.4+: // // > jQuery('selector').bind( 'someevent', jQuery.throttle( delay, [ no_trailing, ] callback ) ); // > jQuery('selector').unbind( 'someevent', callback ); // // Arguments: // // delay - (Number) A zero-or-greater delay in milliseconds. For event // callbacks, values around 100 or 250 (or even higher) are most useful. // no_trailing - (Boolean) Optional, defaults to false. If no_trailing is // true, callback will only execute every `delay` milliseconds while the // throttled-function is being called. If no_trailing is false or // unspecified, callback will be executed one final time after the last // throttled-function call. (After the throttled-function has not been // called for `delay` milliseconds, the internal counter is reset) // callback - (Function) A function to be executed after delay milliseconds. // The `this` context and all arguments are passed through, as-is, to // `callback` when the throttled-function is executed. // // Returns: // // (Function) A new, throttled, function. $.throttle = jq_throttle = function( delay, no_trailing, callback, debounce_mode ) { // After wrapper has stopped being called, this timeout ensures that // `callback` is executed at the proper times in `throttle` and `end` // debounce modes. var timeout_id, // Keep track of the last time `callback` was executed. last_exec = 0; // `no_trailing` defaults to falsy. if ( typeof no_trailing !== 'boolean' ) { debounce_mode = callback; callback = no_trailing; no_trailing = undefined; } // The `wrapper` function encapsulates all of the throttling / debouncing // functionality and when executed will limit the rate at which `callback` // is executed. function wrapper() { var that = this, elapsed = +new Date() - last_exec, args = arguments; // Execute `callback` and update the `last_exec` timestamp. function exec() { last_exec = +new Date(); callback.apply( that, args ); }; // If `debounce_mode` is true (at_begin) this is used to clear the flag // to allow future `callback` executions. function clear() { timeout_id = undefined; }; if ( debounce_mode && !timeout_id ) { // Since `wrapper` is being called for the first time and // `debounce_mode` is true (at_begin), execute `callback`. exec(); } // Clear any existing timeout. timeout_id && clearTimeout( timeout_id ); if ( debounce_mode === undefined && elapsed > delay ) { // In throttle mode, if `delay` time has been exceeded, execute // `callback`. exec(); } else if ( no_trailing !== true ) { // In trailing throttle mode, since `delay` time has not been // exceeded, schedule `callback` to execute `delay` ms after most // recent execution. // // If `debounce_mode` is true (at_begin), schedule `clear` to execute // after `delay` ms. // // If `debounce_mode` is false (at end), schedule `callback` to // execute after `delay` ms. timeout_id = setTimeout( debounce_mode ? clear : exec, debounce_mode === undefined ? delay - elapsed : delay ); } }; // Set the guid of `wrapper` function to the same of original callback, so // it can be removed in jQuery 1.4+ .unbind or .die by using the original // callback as a reference. if ( $.guid ) { wrapper.guid = callback.guid = callback.guid || $.guid++; } // Return the wrapper function. return wrapper; }; // Method: jQuery.debounce // // Debounce execution of a function. Debouncing, unlike throttling, // guarantees that a function is only executed a single time, either at the // very beginning of a series of calls, or at the very end. If you want to // simply rate-limit execution of a function, see the // method. // // In this visualization, | is a debounced-function call and X is the actual // callback execution: // // > Debounced with `at_begin` specified as false or unspecified: // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| // > X X // > // > Debounced with `at_begin` specified as true: // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| // > X X // // Usage: // // > var debounced = jQuery.debounce( delay, [ at_begin, ] callback ); // > // > jQuery('selector').bind( 'someevent', debounced ); // > jQuery('selector').unbind( 'someevent', debounced ); // // This also works in jQuery 1.4+: // // > jQuery('selector').bind( 'someevent', jQuery.debounce( delay, [ at_begin, ] callback ) ); // > jQuery('selector').unbind( 'someevent', callback ); // // Arguments: // // delay - (Number) A zero-or-greater delay in milliseconds. For event // callbacks, values around 100 or 250 (or even higher) are most useful. // at_begin - (Boolean) Optional, defaults to false. If at_begin is false or // unspecified, callback will only be executed `delay` milliseconds after // the last debounced-function call. If at_begin is true, callback will be // executed only at the first debounced-function call. (After the // throttled-function has not been called for `delay` milliseconds, the // internal counter is reset) // callback - (Function) A function to be executed after delay milliseconds. // The `this` context and all arguments are passed through, as-is, to // `callback` when the debounced-function is executed. // // Returns: // // (Function) A new, debounced, function. $.debounce = function( delay, at_begin, callback ) { return callback === undefined ? jq_throttle( delay, at_begin, false ) : jq_throttle( delay, callback, at_begin !== false ); }; })(this); jquery-throttle-debounce-1.1+dfsg.1/unit/000077500000000000000000000000001273720572300203645ustar00rootroot00000000000000jquery-throttle-debounce-1.1+dfsg.1/unit/index.html000066400000000000000000000020141273720572300223560ustar00rootroot00000000000000 jQuery throttle / debounce - Unit Tests

jQuery throttle / debounce - Unit Tests

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These unit tests include jQuery .... To view the unit tests using jQuery 1.3.2, click here

    jquery-throttle-debounce-1.1+dfsg.1/unit/jquery-1.3.2.html000066400000000000000000000017731273720572300232400ustar00rootroot00000000000000 jQuery throttle / debounce - Unit Tests

    jQuery throttle / debounce - Unit Tests

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    These unit tests include jQuery .... To view the unit tests using jQuery 1.4.2, click here

      jquery-throttle-debounce-1.1+dfsg.1/unit/qunit.css000066400000000000000000000060251273720572300222410ustar00rootroot00000000000000 body { font-family:"Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial; } h3, p, #qunit-userAgent, #qunit-banner, ol { margin: 0; padding: 0; } li { list-style-position: inside; } #qunit-tests { font-size: smaller; /* IE6/7 seem to have trouble displaying an OL with no LI children */ #border-bottom: 1px solid #fff; #margin-bottom: -1px; } #qunit-tests li { padding: 0.4em 2.5em; border-bottom: 1px solid #fff; font-size: small; } #qunit-tests li ol { margin-top: 0.5em; padding: 0.5em; background-color: #fff; -moz-box-shadow: inset 0px 1px 8px #ccc; -webkit-box-shadow: inset 0px 1px 8px #ccc; box-shadow: inset 0px 1px 8px #ccc; } #qunit-tests li ol, #qunit-header, #qunit-testresult { -moz-border-radius: 10px; -webkit-border-radius: 10px; border-radius: 10px; } #qunit-tests li li { border-bottom: none; margin: 0.5em; background-color: #fff; list-style-position: inside; padding: 0.4em 0.5em; } #qunit-tests li li.pass { border-left: 26px solid #0a0; background-color: #fff; color: #0a0; } #qunit-tests li li.fail { border-left: 26px solid #f00; background-color: #fff; color: #f00; } #qunit-tests li.pass, h3, p { color: #913D00; background-color: #FDEBDC; } h3, p { font-size: small; padding: 0.4em 0.5em 0.4em 2.5em; border-bottom: 1px solid #fff; } h3 a, p a { color: #FF7F00; } h3 a:hover, p a:hover { color: #000; } #qunit-tests li.fail { background-color: #f99; color: #000; } #qunit-tests li strong { cursor: pointer; } #qunit-header { color: #fff; background-color: #FF7F00; margin: 0; padding: 0.5em 2em; -moz-border-radius-bottomright: 0; -moz-border-radius-bottomleft: 0; -webkit-border-bottom-right-radius: 0; -webkit-border-bottom-left-radius: 0; border-bottom-right-radius: 0; border-bottom-left-radius: 0; } #qunit-header h1 { float: left; margin: 0; padding: 0; line-height: 2em; font-size: x-large; } #qunit-header small { float: right; font-weight: 700; line-height: 3.5em; } #qunit-header a { color: #fff; } #qunit-header a:hover { color: #000; } /* Added span inside #qunit-banner to work around IE6 #id.class bug */ #qunit-banner span { display: block; height: 5px; _overflow: hidden; } #qunit-banner.qunit-pass span { background-color: #0a0; } #qunit-banner.qunit-fail span, #qunit-testrunner-toolbar { background-color: #f99; } #qunit-testrunner-toolbar { padding: 0; /*width: 80%;*/ padding: 0em 0 0.5em 2em; font-size: small; } #qunit-userAgent { background-color: #913D00; color: #fff; font-size: small; padding: 0.5em 0 0.5em 2.5em; } #qunit-testresult { margin: 0; font-size: small; color: #913D00; background-color: #FDEBDC; padding: 0.5em 0.5em 0.5em 2.5em; -moz-border-radius-topright: 0; -moz-border-radius-topleft: 0; -webkit-border-top-right-radius: 0; -webkit-border-top-left-radius: 0; border-top-right-radius: 0; border-top-left-radius: 0; } strong b.fail { color: #f00; } strong b.pass { color: #0a0; } jquery-throttle-debounce-1.1+dfsg.1/unit/unit.js000066400000000000000000000142101273720572300216770ustar00rootroot00000000000000// Not sure why this isn't set by default in qunit.js.. QUnit.jsDump.HTML = false; $(function(){ // START CLOSURE $('#jq_version').html( $.fn.jquery ); var pause = 500, delay = 100; function exec_many_times( each, complete ) { var i = 0, repeated, id; function start(){ id = setInterval(function(){ each(); if ( ++i === 50 ) { clearInterval( id ); complete( repeated ? null : function(){ i = 0; repeated = true; setTimeout( start, pause ); }); } }, 20); } setTimeout( start, pause ); }; module( '$.throttle' ); test( 'delay, callback', function() { expect( 7 ); stop(); var start_time, i = 0, arr = [], fn = function( now ){ arr.push( now - this ) }, throttled = $.throttle( delay, fn ); equals( throttled.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ var now = +new Date(); start_time = start_time || now; i++; throttled.call( start_time, now ); }, function( callback ){ var len = arr.length; setTimeout(function(){ //console.log( arr, arr.length, len, i ); ok( arr.length < i, 'callback should be executed less # of times than throttled-callback' ); equals( arr[0], 0, 'callback should be executed immediately' ); equals( arr.length - len, 1, 'callback should be executed one more time after finish' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); test( 'delay, false, callback', function() { expect( 7 ); stop(); var start_time, i = 0, arr = [], fn = function( now ){ arr.push( now - this ) }, throttled = $.throttle( delay, false, fn ); equals( throttled.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ var now = +new Date(); start_time = start_time || now; i++; throttled.call( start_time, now ); }, function( callback ){ var len = arr.length; setTimeout(function(){ //console.log( arr, arr.length, len, i ); ok( arr.length < i, 'callback should be executed less # of times than throttled-callback' ); equals( arr[0], 0, 'callback should be executed immediately' ); equals( arr.length - len, 1, 'callback should be executed one more time after finish' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); test( 'delay, true, callback', function() { expect( 7 ); stop(); var start_time, i = 0, arr = [], fn = function( now ){ arr.push( now - this ) }, throttled = $.throttle( delay, true, fn ); equals( throttled.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ var now = +new Date(); start_time = start_time || now; i++; throttled.call( start_time, now ); }, function( callback ){ var len = arr.length; setTimeout(function(){ //console.log( arr, arr.length, len, i ); ok( arr.length < i, 'callback should be executed less # of times than throttled-callback' ); equals( arr[0], 0, 'callback should be executed immediately' ); equals( arr.length - len, 0, 'callback should NOT be executed one more time after finish' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); module( '$.debounce' ); test( 'delay, callback', function() { expect( 5 ); stop(); var start_time, i = 0, arr = [], fn = function(){ arr.push( +new Date() ) }, debounced = $.debounce( delay, fn ); equals( debounced.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ start_time = start_time || +new Date(); i++; debounced.call(); }, function( callback ){ var len = arr.length, done_time = +new Date(); setTimeout(function(){ //console.log( arr[0] - done_time ); equals( arr.length, 1, 'callback was executed once' ); ok( arr[0] >= done_time, 'callback should be executed after the finish' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); test( 'delay, false, callback', function() { expect( 5 ); stop(); var start_time, i = 0, arr = [], fn = function(){ arr.push( +new Date() ) }, debounced = $.debounce( delay, false, fn ); equals( debounced.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ start_time = start_time || +new Date(); i++; debounced.call(); }, function( callback ){ var len = arr.length, done_time = +new Date(); setTimeout(function(){ //console.log( arr[0] - done_time ); equals( arr.length, 1, 'callback was executed once' ); ok( arr[0] >= done_time, 'callback should be executed after the finish' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); test( 'delay, true, callback', function() { expect( 5 ); stop(); var start_time, i = 0, arr = [], fn = function(){ arr.push( +new Date() ) }, debounced = $.debounce( delay, true, fn ); equals( debounced.guid, fn.guid, 'throttled-callback and callback should have the same .guid' ); exec_many_times( function(){ start_time = start_time || +new Date(); i++; debounced.call(); }, function( callback ){ var len = arr.length; setTimeout(function(){ //console.log( arr[0] - start_time ); equals( arr.length, 1, 'callback was executed once' ); ok( arr[0] - start_time <= 5, 'callback should be executed at the start' ); start_time = null; arr = []; i = 0; callback ? callback() : start(); }, delay * 2); }) }); }); // END CLOSURE