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How does :first affect performance when finding the first of ONE in the DOM, and how does it perform when finding the first of MANY in the DOM?
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<form name="detailform" id="detailform" action="https://skywardinc.iscorp.com/scripts/wsisa.dll/WService=wsfininhouse/seplog01.w" method="post" target="">
<input type="hidden" name="hCompName" id="hCompName" value="SKYWEB25A"><input type="hidden" name="hOSName" id="hOSName" value="Windows NT">
<div id="pageOuterWrap" class="normal noheader sepadm01"><div id="pageInnerWrap" class="mode">
<div id="dMessage" style="display:none; position:absolute; top:1px; left:1px; cursor:default; z-index:300; overflow-x:display;" onmousedown="gDoDim=false;" role="alertdialog" aria-labelledby="msgTitle">
<div id="msgBodyTable">
<div id="msgTitle" onmousedown="gDoDim=false; setMouseStart(event,"dMessage");" onmouseup="gFilter="""></div>
<div id="msgBodyCol"></div><div id="msgActions" class="msgActions">
<span class="msgBtnWrap">
<a class="button" id="msgBtn1" tabindex="5" href="javascript:void(0)" role="button" style="width:100px;"> </a>
</span>
<span class="msgBtnWrap">
<a class="button" id="msgBtn2" tabindex="6" href="javascript:void(0)" role="button" style="width:100px;"> </a>\
</span>
<span class="msgBtnWrap">
<a class="button" id="msgBtn3" tabindex="7" href="javascript:void(0)" role="button" style="width:100px;"> </a>
</span></div></div>
</div>
<div id="lockDiv" style="z-index:100; position:absolute; left:0px; top:0px; height:0px; width:0px; visibility:hidden; background-color:#000000; opacity:0.50; filter:alpha(opacity=50);" oncontextmenu="return false;"></div>
<div id="dPrintMessage" style="display:none; position:absolute; top:1px; left:1px; cursor:default; z-index:300; overflow-x:display;" onmousedown="gDoDim=false;">
<table cellspacing="0" id="printMsgBodyTable">
<tbody>
<tr class="printMsgTitle">
<td class="titleLeft"> </td>
<td class="printMsgTitle" id="printMsgTitle" onmousedown="gDoDim=false; setMouseStart(event,"dPrintMessage");" onmouseup="gFilter=""">
</td>
<td class="titleRight"> </td>
</tr>
<tr class="printMsgBody">
<td id="printMsgBodyCol" valign="top" colspan="3">
</td>
</tr>
<tr class="printMsgActions">
<td class="actionsLeft"> </td>
<td id="printMsgActions">
<span style="float:left;">
<a class="button" id="printMsgBtn1" tabindex="5" href="javascript:void(0)" role="button"> </a>
</span>
<span style="float:right;">
<a class="button" id="printMsgBtn2" tabindex="6" href="javascript:void(0)" role="button"> </a>
</span>
</td>
<td class="actionsRight"> </td>
</tr>
</tbody>
</table>
</div>
<div id="contentWrap">
<div id="loginOuterWrap">
<div id="loginBoxWrap">
<div id="loginHeaderWrap">
<div id="loginHeader">
<div id="loginBrading">
<img src="/webspeed/wfssky01.gif" alt="Skyward Logo" height="88" width="150">
</div>
<div id="loginDistrict">SKYWARD</div>
</div>
</div>
<div id="loginBodyWrap">
<div id="loginBody">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td class="loginLabel">Login ID:</td>
<td class="loginData">
<input type="text" class="EditInput" name="login" id="login" autocomplete="off" tabindex="5" onkeydown="return checkKey(event, this);" style="width: 163px; background-color: rgb(208, 255, 176); outline: rgb(127, 157, 185) solid 1px;" maxlength="50" size="28" origvalue="" det="true" autocapitalize="off" autocorrect="off" spellcheck="false" aria-labelledby=" hValueChanged">
</td>
</tr>
<tr>
<td class="loginLabel">Password:</td>
<td class="loginData">
<input type="password" class="EditInput" name="password" id="password" autocomplete="off" tabindex="10" onkeydown="return checkKey(event, this);" style="width:163px; " maxlength="100" size="28" det="true">
</td>
</tr>
<tr>
<td colspan="2" class="loginButton">
<a class="button" id="bLogin" tabindex="15" href='javascript:if (cbs("bLogin")) {tryLogin();}' role="button">Sign In</a>
</td>
</tr>
</tbody>
</table>
<div id="version" tooltip="<b>05</b> = <i>SIF</i> version number<br> .<b>13</b> = The <i>Year</i> the Full Release was distributed (2013)<br> .<b>10</b> = The <i>Month</i> the Full Release was distributed (October)<br> .<b>00</b> = Increments with each <i>PMP</i> that is distributed after the Full Release<br> .<b>03</b> = Increments for each <i>Addendum</i> after the PMP<br> -<b>10.2</b> = Indicates the Database Version." tooltip-position="right" tooltip-width="450px">05.13.10.00.03-10.2</div>
</div>
</div>
</div>
<div id="loginAreaWrap">
<div id="loginArea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td class="loginLabel">Login Area:</td>
<td class="loginData">
<select class="EditSelectFixed" name="cUserRole" id="cUserRole" tabindex="15" style="width:168px;" size="1" origvalue="" det="true">
<option class="findMe" data-find="findMe" id="findMe">Secured Access</option>
</select>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div id="errorPanel" class="noErrors">
<noscript><h1><span>JavaScript</span> Error<small>JavaScript is turned off in your web browser. This site requires JavaScript to be enabled before you can proceed.</small></h1></noscript>
</div>
</div>
</div>
<div id="loginFooterWrap" style="top: 446px;">
<div id="copyArea" ondblclick="toggleIHDetails();">© 2013
<a href="http://www.skyward.com/" target="_blank">Skyward, Inc.</a>
All rights reserved.
</div>
<div id="infoArea">
<div id="BrowserVersionContainer">
Windows 7 / Chrome 30
</div>
</div>
<br>
</div>
<input type="button" role="button" id="bFakeClose" onclick="self.close();" style="height:0px; width:0px; display:none;">
<input type="hidden" name="dwd" id="dwd" value="">
<input type="hidden" name="wfaacl" id="wfaacl" value="">
<input type="hidden" name="encsec" id="encsec" value="">
<input type="hidden" name="entity" id="entity" value="">
<input type="hidden" name="entities" id="entities" value="">
<input type="hidden" name="SecurityMenuID" id="SecurityMenuID" value="0">
<input type="hidden" name="HomePageMenuID" id="HomePageMenuID" value="0">
<input type="hidden" name="LinkNames" id="LinkNames" value="">
<input type="hidden" name="nameid" id="nameid" value="">
<input type="hidden" name="MobileId" id="MobileId" value="">
<input type="hidden" name="hNavMenus" id="hNavMenus" value="">
<input type="hidden" name="hNavSubMenus" id="hNavSubMenus" value="">
<input type="hidden" name="hNavSearchOption" id="hNavSearchOption" value="all">
<input type="hidden" name="hSecCache" id="hSecCache" value="0 items in 0 entities">
<input type="hidden" name="LinkData" id="LinkData" value="">
<input type="hidden" name="passedparams" id="passedparams" value="">
<input type="hidden" name="vMaintOption" id="vMaintOption" value="">
<input type="hidden" name="CurrentProgram" id="CurrentProgram" value="skyportlogin.w">
<input type="hidden" name="CurrentVersion" id="CurrentVersion" value="010141">
<input type="hidden" name="SuperVersion" id="SuperVersion" value="011726">
<input type="hidden" name="PaCVersion" id="PaCVersion" value="05.13.10.00.03-10.2">
<input type="hidden" name="currentrecord" id="currentrecord" value="">
<input type="hidden" name="BrowseRowNumber" id="BrowseRowNumber" value="">
<input type="hidden" name="Browser" id="Browser" value="Chrome">
<input type="hidden" name="BrowserVersion" id="BrowserVersion" value="30">
<input type="hidden" name="BrowserPlatform" id="BrowserPlatform" value="Win32">
<input type="hidden" name="TouchDevice" id="TouchDevice" value="false">
<input type="hidden" name="OpenRow" id="OpenRow" value="">
<input type="hidden" name="OpenDetails" id="OpenDetails" value="">
<input type="hidden" name="PopupWidth" id="PopupWidth" value="">
<input type="hidden" name="PopupHeight" id="PopupHeight" value="">
<input type="hidden" name="noheader" id="noheader" value="yes">
<input type="hidden" name="vSelectMode" id="vSelectMode" value="">
<input type="hidden" name="PreviousProgram" id="PreviousProgram" value="">
<input type="hidden" name="duserid" id="duserid" value="-1">
<input type="hidden" name="RefreshMode" id="RefreshMode" value="">
<input type="hidden" name="hIPInfo" id="hIPInfo" value="71.87.22.130">
<input type="hidden" name="hBrowseFirstRowid" id="hBrowseFirstRowid" value="">
<input type="hidden" name="HomePage" id="HomePage" value="sepadm01.w">
<input type="hidden" name="hApplyingFilter" id="hApplyingFilter" value="">
<input type="hidden" name="hRepositioning" id="hRepositioning" value="">
<input type="hidden" name="loginID" id="loginID" value="-1">
<input type="hidden" name="pDesc" id="pDesc" value="">
<input type="hidden" name="pProgram" id="pProgram" value="">
<input type="hidden" name="pParams" id="pParams" value="">
<input type="hidden" name="pPath" id="pPath" value="">
<input type="hidden" name="pInfo" id="pInfo" value="">
<input type="hidden" name="pType" id="pType" value="">
<input type="hidden" name="pSrpplmIn" id="pSrpplmIn" value="">
<input type="hidden" name="pPriority" id="pPriority" value="">
<input type="hidden" name="pButtons" id="pButtons" value="">
<input type="hidden" name="fileUploadLimit" id="fileUploadLimit" value="">
<input type="hidden" name="blobid" id="blobid" value="">
<input type="hidden" name="pEnc" id="pEnc" value="">
<input type="hidden" name="fileInputId" id="fileInputId" value="">
<input type="hidden" name="delAttachReturn" id="delAttachReturn" value="">
<input type="hidden" id="hUseCGIIP" name="hUseCGIIP" value="yes">
<input type="hidden" name="hScrollBarWidth" id="hScrollBarWidth" value="">
<input type="hidden" name="UserSecLevel" id="UserSecLevel" value="5">
<input type="hidden" name="UserLookupLevel" id="UserLookupLevel" value="5">
<input type="hidden" name="hAnon" id="hAnon" value="bjlbYpAByijcxUsV">
<input type="hidden" name="pState" id="pState" value="WI">
<input type="hidden" name="pCountry" id="pCountry" value="US">
<input type="hidden" name="hDistSerial" id="hDistSerial" value="4666ea53w">
<input type="hidden" name="hDisplayBorder" id="hDisplayBorder" value="true">
<input type="hidden" name="hAlternateColors" id="hAlternateColors" value="true">
<input type="hidden" name="BrowserName" id="BrowserName" value="">
<input type="hidden" name="web-data-recid" id="web-data-recid" value="">
<input type="hidden" name="wfaacl-recid" id="wfaacl-recid" value="">
<input type="hidden" name="User-Type" id="User-Type" value="">
<input type="hidden" name="tempAccess" id="tempAccess" value="">
<input type="hidden" name="screenWidth" id="screenWidth" value="1920">
<input type="hidden" name="screenHeight" id="screenHeight" value="1080">
<input type="hidden" name="showTracker" id="showTracker" value="">
<input type="hidden" name="displaySecond" id="displaySecond" value="">
<input type="hidden" name="insecure" id="insecure" value="">
<input type="hidden" name="redirectTo" id="redirectTo" value="">
<input type="hidden" name="hforgotLoginPage" id="hforgotLoginPage" value="seplog01">
<input type="hidden" name="userAgent" id="userAgent" value="Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36">
<input type="hidden" name="osName" id="osName" value="Windows 7">
<input type="hidden" name="brwsInfo" id="brwsInfo" value="Chrome 30">
<input type="hidden" name="subversion" id="subversion" value="30">
<input type="hidden" name="supported" id="supported" value="true">
<input type="hidden" name="pageused" id="pageused" value="Desktop">
<input type="hidden" name="recordLimit" id="recordLimit" value="30">
<input type="hidden" name="hFilterOpen" id="hFilterOpen" value="">
<input type="hidden" name="filterElementList" id="filterElementList" value="">
<input type="hidden" name="currentbrowse" id="currentbrowse" value="">
<input type="hidden" name="vSelectedColumn" id="vSelectedColumn" value="">
<input type="hidden" name="vSelectedColumnDirection" id="vSelectedColumnDirection" value="">
<input type="hidden" name="hOpenSave" id="hOpenSave" value="no">
<input type="hidden" name="hButtonHotKeyIDs" id="hButtonHotKeyIDs" value="bCancel">
<input type="hidden" name="hButtonHotKeys" id="hButtonHotKeys" value="B">
</div>
</div>
<input type="hidden" name="hLoadTime" id="hLoadTime" value=".113">
</form>
<form style="display:none;" name="navform" method="post" action="sepadm01.w"> <input type="hidden" name="nameid" id="nameid" value="-1">
<input type="hidden" name="dwd" id="dwd" value="">
<input type="hidden" name="wfaacl" id="wfaacl" value="">
<input type="hidden" name="encsec" id="encsec" value="">
<input type="hidden" name="back" id="back" value="x">
<input type="hidden" name="entity" id="entity" value="">
<input type="hidden" name="entities" id="entities" value="">
<input type="hidden" name="vProgramId" id="vProgramId" value="">
<input type="hidden" name="whereto" id="whereto" value="">
<input type="hidden" name="Browser" id="Browser" value="Chrome">
<input type="hidden" name="BrowserVersion" id="BrowserVersion" value="30">
<input type="hidden" name="BrowserPlatform" id="BrowserPlatform" value="Win32">
<input type="hidden" name="BrowserName" id="BrowserName" value="IE">
<input type="hidden" name="TouchDevice" id="TouchDevice" value="false">
<input type="hidden" name="HomePage" id="HomePage" value="sepadm01.w">
<input type="hidden" name="HomePageMenuID" id="HomePageMenuID" value="">
<input type="hidden" name="FromHomePage" id="FromHomePage" value="true">
<input type="hidden" name="FromRecent" id="FromRecent" value="false">
<input type="hidden" name="ButtonID" id="ButtonID" value="">
<input type="hidden" name="RecentString" id="RecentString" value="">
</form>
<!-- Generated by Webspeed: http://www.webspeed.com/ -->
<div class="skyTipWrap" role="tooltip">
<div class="skyTip" role="tooltip"></div>
</div>
<div class="ui-pnotify " role="status" style="width: 250px; opacity: 0.8; display: none; right: 15px; bottom: 15px;">
<div class="ui-widget ui-widget-content ui-corner-all ui-pnotify-container ui-state-highlight" style="min-height: 16px;">
<div class="ui-pnotify-closer" style="cursor: pointer; display: none;">
<span class="ui-icon ui-icon-circle-close"></span>
</div>
<div class="ui-pnotify-icon">
<span class="ui-icon ui-icon-info"></span>
</div>
<div class="ui-pnotify-title" style="display: none;"></div>
<div class="ui-pnotify-text">Please wait...</div>
</div>
</div>Ready to run.
| Test | Ops/sec | |
|---|---|---|
| 1/many:first | | ready |
| 1/1:first | | ready |
| 1/many.first() | | ready |
| 1/1.first() | | ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.