selector

jQuery element[attribute=something] vs element.class performance

由 十年热恋 提交于 2019-12-11 16:59:52
问题 I am wondering which way would end up being faster, selecting elements by: $('element[href=#my_link]'); or: $('element.my_class'); I don't like repeating myself when I write code, so I prefer to write it the first way for the most part because then I can add information to it like: <a href="#delete_1">Delete</a> $('a[href^=#delete]'); and then split it up so that I have all of the information that I need once it is clicked, or whatever the action may be. Am I sacrificing overall performance

Turning a complex jquery css selector into a context for caching

由 烂漫一生 提交于 2019-12-11 16:59:06
问题 After feedback, complete rewrite of the question. I have the following mark up : <body> <h1>Title</h1> <p>bla</p> <div> ... <!-- a thousand tags --> </div> <div id="do-not-modify-me"> <!-- a hundred tags --> </div> </body> I can access to : <h1>Title</h1> <p>bla</p> <div> ... <!-- a thousand tags --> </div> Using : $('body > *:not(div#do-not-modify-me)'); I do that so I can get all the content of the body except the div with the id "do-not-modify-me". Now, let's say that I want to build a

what is the right jquery selector syntax to get all checkboxes with a certain class name?

由 こ雲淡風輕ζ 提交于 2019-12-11 15:36:15
问题 i have jquery code that loop through all checkboxes. $('input[type=checkbox]').each(function () { I now need to make this code more restrictive because i now have other checkboxes on this page. how can i change this so it only loops through all checkboxes with a certain class name? 回答1: $('input[type=checkbox].class').each(function () { 回答2: No need to include 'input' in the selector: $(':checkbox.class') 回答3: $('input[type=checkbox].myClassName').each(function () { 回答4: If you're just making

android:state_selected not working

由 二次信任 提交于 2019-12-11 14:22:09
问题 I just want to change the image on button click using the selector in the XML file. android:state_pressed="true" is working while android:state_selected="true" not working. Here is my xml code: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_selected="true" android:state_checked="false" android:state_focused="false" android:state_pressed="false" android:drawable="@drawable/discount1"/> <item android:state_pressed

Can XPath be used to search a <script> block?

由 蓝咒 提交于 2019-12-11 12:54:52
问题 I'm OK skills-wise at selecting all sorts of HTML content. So all confident creating some code that should be ripping content of a site I stumbled across some strange JavaScript code where the source puts its prices in. <script> var productConfig = {"attributes":{"178":{"id":"178","code":"bp_flavour","label":"Smaak","options":[{"id":"28","label":"Aardbeien","oldPrice":"0","products":["2292","2294","2296","2702"]} .... more gibberish and than 4 of each product variation: (so like 80 different

Difference between Child and Descendant Combinator Selectors

由 匆匆过客 提交于 2019-12-11 12:44:22
问题 I've been trying to practice using the child combinator selector and seem to be having some mixed results. I set up the following sample html: <div class="One"> One Text <div class="Two"> Two Text <div class="Three"> Three Text <div class="Four"> THE BASE IS HERE. </div> </div> </div> </div> Then I tried to do the following. div.One > div.Two { color: blue; } My results were the same as if I had just used a descendant selector. Although, when I tried using the child combinator with ordered

how to override pressed state color in sherlock action bar?

由 陌路散爱 提交于 2019-12-11 12:35:03
问题 I implemented sherlock actionbar in my app which has dark green action bar .. #008000. when i press the action bar button it turns out ics blue (default) color...how to turns out green when i press action bar button?. IN themes.xml i am using this. <resources> <style name="Theme.Styled" parent="Theme.Sherlock.Light"> <item name="actionBarStyle">@style/Widget.Styled.ActionBar</item> <item name="android:actionBarStyle">@style/Widget.Styled.ActionBar</item> <item name="actionBarItemBackground">

JQuery Contains Selector - Multiple Text Items

由 纵然是瞬间 提交于 2019-12-11 12:31:14
问题 I am new to JQuery and maybe am missing the obvious, but how can I filter a table using the contains selector but have it look for multiple strings using an OR operator. In other words, I would like rows containing "Red" OR "Yellow" to be hidden. So far I have this which works by hiding all rows except the given date: $(function() { $('div#WebPartWPQ5 table.ms-summarycustombody tr:not(:contains("10/27/2009"))') .hide(); }); As added challenge, what I am really trying to do is write a hidden

Selector.wakeup() and “happens-before” relationship

由 若如初见. 提交于 2019-12-11 11:23:28
问题 Im writing yet another NIO server. There is a selector thread that performs reading, processing (for the most cases) and writing (pseudo-code below, not real Java): while (true) { select(); for (key : keys) { if (isReading(key)) { data = read(key.channel()); result = process(data); key.interestOps(OP_WRITE); } if (isWriting(key)) { key.channel().write(result); } } } The processing for the most cases is trivial, so should be fine. However there are (rare) cases, when processing is time

jQuery : selector targetting a dynamic attribute not working

由 落爺英雄遲暮 提交于 2019-12-11 11:03:08
问题 I'm trying to create a Fanorona game. http://canapin.com/web/fanorona One of my jQuery selector doesn't work as intended. After moving a blue stone by clicking it then clicking on a green space, the active player (var activePlayer) changes from "blue" to "red". $("#board").on("click", "[data-color='"+activePlayer+"']", function(){ console.log(activePlayer); console.log($(this).attr("data-color")); When the active played is "red" and I click on a red stone (data-color="red"), it does nothing.
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