Check if the Checkbox with the Value X gets unchecked?

This question already has an answer here: jQuery checkbox change and click event 16 answers 通过checkboxex循环,然后检查如下var c=$(".commonclassname"); for(var i=0;i<c.length;i++) { if(c[i].value=="your value") { //matched... } } Here's how to detect if a checkbox with a particular value gets unchecked $("input[type=checkbox]").click(function() { if ($(this).val() =

检查值为X的复选框是否未被选中?

这个问题在这里已经有了答案: jQuery复选框更改并单击事件16个答案 通过checkboxex循环,然后检查如下var c=$(".commonclassname"); for(var i=0;i<c.length;i++) { if(c[i].value=="your value") { //matched... } } 以下是如何检测具有特定值的复选框是否未被选中 $("input[type=checkbox]").click(function() { if ($(this).val() == "test2" && !$(this).is(":checked")) { alert

adding check all and uncheck all option using value inside checkbox

I am trying to create a select all, unselect all options like we see in email inboxes for a group of checkboxes. I have added an example for this. The working model that I am trying to get is when a I click on checkbox, it should select and unselect that group with a particular value. Also even if we uncheck any single name form the list, it should uncheck the main "select all" check

添加选中全部并取消选中复选框内的所有选项

我正在尝试创建一个全选,取消选择所有选项,就像我们在电子邮件收件箱中看到的一组复选框。 我已经为此添加了一个示例。 我试图得到的工作模型是当我点击复选框时,它应该选择并取消选择具有特定值的组。 即使我们取消选中列表中的任何单个名称,也应该取消选中主“全选”复选框。 我已经添加了一个jsfiddle,但它不能正常工作。 $(document).ready(function(){ $("#selectAll").live("click",function(e){ e.pre

jQuery: check if checkboxes are checked

I want to highlight any unchecked checkboxes when a form is submitted. I've got a total of six checkboxes in .new_order , and I've started writing the function but I'm a bit stuck how to add a highlight class to each unchecked checkbox in .new_order . $('#orderconfirm').click(function () { if ($('.modal .modal-body .new_order :checkbox').is(':unchecked') { $(this).addCla

jQuery:检查复选框是否被选中

我想在提交表单时突出显示任何未选中的复选框。 我在.new_order总共有六个复选框,并且我已经开始编写该函数,但是我有点卡住了如何向.new_order 每个未选中的复选框添加一个高亮类。 $('#orderconfirm').click(function () { if ($('.modal .modal-body .new_order :checkbox').is(':unchecked') { $(this).addClass('highlight'); } }); 此代码是否会遍历每个复选框? 我觉得我失去了一些东西。 此外,这

Get if checkbox is checked or not in jquery/ES6

Following is my jQuery code by which I am trying to retrieve whether the checkbox is clicked or not. I used both is and prop but somehow its always returning false and undefined in console. Let me know what I am doing wrong here. Also, let me know the more better way to handle the checkbox value is to target the click or change event on checkbox( currently I am listening to click event). jQ

获取复选框是否被选中或不在jquery / ES6中

以下是我试图检索复选框是否被点击的jQuery代码。 我用过is和prop但总是返回false并在控制台中undefined 。 让我知道我在这里做错了什么。 另外,让我知道更好的方式来处理复选框的值是针对复选框上的click或change事件(目前我正在监听click事件)。 jQuery代码 - const $document = $(document); $document.ready(() => { $("input[type='checkbox']").on('click', () => { console.log("Checked Val

MVC 4 display/hide a textbox based on a checkbox check

New to MVC--was never much of a front-end Web developer (mostly backend), so I'm not too privy to good design on the front-end. Now, I'm trying to use MVC without much original WebForm knowledge...that being said, please give me some pointers/links/good ideas on how to handle the following: I have a textbox field that I want to show/hide based on a checkbox. I have these fields in my

MVC 4根据复选框检查来显示/隐藏文本框

MVC的新手 - 绝不是前端Web开发人员(主要是后端),所以我对前端的优秀设计不太了解。 现在,我正在尝试使用MVC,而没有太多原始的WebForm知识......据说,请给我一些关于如何处理以下内容的指针/链接/好点子: 我有一个基于复选框显示/隐藏的文本框字段。 我在View中使用这些字段@using(Html.BeginForm()... 我应该更改JavaScript或控制器操作中文本框的属性吗? 如果我使用javascript,我很难在beginform中获得值,

get value of a checked bootstrap checkbox

I have this HTML form: <div class="animated-switch"> <input id="switch-success" name="switch-success" checked="" type="checkbox"> <label for="switch-success" class="label-success"></label> </div> How i can know if the input is checked or not ? I tried like this but nothing alerted: $(document).on('click','.animated-switch',function(e){ alert($('#switch

获取选中的引导复选框的值

我有这个HTML表单: <div class="animated-switch"> <input id="switch-success" name="switch-success" checked="" type="checkbox"> <label for="switch-success" class="label-success"></label> </div> 我怎么知道输入是否被检查? 我尝试这样但没有提示: $(document).on('click','.animated-switch',function(e){ alert($('#switch-success:checked').val() ); }); 这里有

How do I check if checkbox is selected

This question already has an answer here: Check if checkbox is checked with jQuery 19 answers 使用 if($("#chk1").is(":checked")){ $(".checkbox-deselect").css("background" , "red"); } else{ $(".checkbox-deselect").css("background" , "green"); }

如何检查是否选中复选框

这个问题在这里已经有了答案: 检查复选框是否与jQuery 19答案一起检查 使用 if($("#chk1").is(":checked")){ $(".checkbox-deselect").css("background" , "red"); } else{ $(".checkbox-deselect").css("background" , "green"); }

Check if all checkboxes are checked on submit

This question already has an answer here: Check if checkbox is checked with jQuery 19 answers 您可以在选择器中使用:checked修饰符。 if ($("#boom :checkbox:checked").length == 0) { alert("You have to check at least one box"); }

检查提交时是否检查所有复选框

这个问题在这里已经有了答案: 检查复选框是否与jQuery 19答案一起检查 您可以在选择器中使用:checked修饰符。 if ($("#boom :checkbox:checked").length == 0) { alert("You have to check at least one box"); }

typeof !== "undefined" vs. != null

I often see JavaScript code which checks for undefined parameters etc. this way: if (typeof input !== "undefined") { // do stuff } This seems kind of wasteful, since it involves both a type lookup and a string comparison, not to mention its verbosity. It's needed because 'undefined' could be renamed, though. My question is: How is that code any better than this approach: if (

typeof!==“未定义”与!= null

我经常看到这样检查未定义参数的JavaScript代码: if (typeof input !== "undefined") { // do stuff } 这看起来很浪费,因为它涉及类型查询和字符串比较,更不用说它的详细程度了。 这是必要的,因为'未定义'可以重新命名。 我的问题是:该代码如何比这种方法更好: if (null != input) { // do stuff } 据我所知,你不能重新定义null,所以它不会意外中断。 而且,由于!=运算符的类型强制,这会检查un

Get relative x and y div after rotation

So here's one which I wished I paid more attention in maths class for: http://i.imgur.com/noKxg.jpg I have a big container div and inside of this I have a few content divs which are rotated. What I'm trying to do is animate between the child divs by moving the Main Div around in the viewport. This would be really easy if I was just doing it based upon simple x/y (top/left) calculat

旋转后获取相对x和y div

所以这里是我希望我在数学课上更多关注的一点: http://i.imgur.com/noKxg.jpg 我有一个很大的容器div,里面有一些旋转的内容div。 我想要做的是通过在视口中移动Main Div来在子div之间生成动画。 如果我只是基于简单的x / y(上/左)计算来做这件事,那真的很容易,但是当涉及轮换时,我的数学就会崩溃。 我尝试了一些东西,并没有真正破解它。 以下是我的结果排序的简化版本,请随时拨动: http://jsfiddle.net/d