checked

Which way to test if an element is checked is better? .is(':checked') or .prop('checked')

本小妞迷上赌 提交于 2019-12-01 15:25:06
问题 Both .is(':checked') and .prop('checked') can be used to test if a checkbox is checked. Are there any interesting/important differences between those two ways of querying the checked state or is it pretty much only a matter of personal preference? 回答1: They both end up checking the same thing. If you're using 1.6.0 or higher, prop('checked') is the most direct jQuery way. jQuery doesn't have to parse and process a selector to figure out what to do. [Note below] You can also (as of 1.6.1) use

javascript change form onsubmit dynamically

五迷三道 提交于 2019-12-01 02:16:44
问题 I have a form with some action and onsubmit values, which is submitted through a submit input tag. The problem is that it should be submittable by two buttons, so I wrote a function for the second button to change the action and onsubmit values of the form: <a href="javascript:submitCompare()" class="submit">Compare</a> function submitCompare() { document.myForm.action = "anotherAction.php"; document.myForm.onsubmit = function() {return countChecked()}; document.myForm.submit(); } function

Google Sheets Script to Hide Row if Checkbox Checked

独自空忆成欢 提交于 2019-11-30 23:22:01
I am trying to find a working code that will automatically hide a row if the checkbox in column F of that row is checked. I have tried every script I have found and nothing seems to work. Unfortunately I am not code savvy and I am unable to find the issue. This is what I currently have: function onOpen() { var s = SpreadsheetApp.getActive().getSheetByName("Checklists"); s.showRows(1, s.getMaxRows()); s.getRange('F2:F200') .getValues() .forEach( function (r, i) { if (r[0] == "TRUE") s.hideRows(i + 1); }); } The sheet I am working on is "Checklists" and the column that contains the checkbox is F

Good practices for Java exceptions handling [closed]

ⅰ亾dé卋堺 提交于 2019-11-30 20:23:40
I have some questions regarding handling exceptions in Java. I read a bit about it and got some contradicting guidelines. Best Practices for Exception Handling Let's go through the mentioned article: It states that one should generally avoid using checked exceptions if "Client code cannot do anything" . But what does it exactly mean? Is displaying error message in GUI sufficient reason for bubbling up checked exception? But it would force GUI programmer to remember to catch RuntimeExceptions and their descendants to display potential error info. Second view presented in this article is that

Good practices for Java exceptions handling [closed]

♀尐吖头ヾ 提交于 2019-11-30 04:37:46
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I have some questions regarding handling exceptions in Java. I read a bit about it and got some contradicting guidelines. Best

JS .checked vs jquery attr('checked'), what is the difference?

一笑奈何 提交于 2019-11-29 09:57:27
I can't figure this one out. According to W3 Schools , the checked property sets or returns the checked state of a checkbox. So why does $('input').checked ? $('div').slideDown() : $('div').slideUp(); not work? Using prop however, does work. $('input').prop('checked') ? $('div').slideDown() : $('div').slideUp(); This is for a checkbox that is checked based on a database value. checked is a DOM element property so use it on DOM elements instead of jQuery objects. $('input')[0].checked if you have a jQuery object, use prop instead of attr since you are checking a property. Just as a reference: $

What is the proper way to check and uncheck a checkbox in HTML5?

邮差的信 提交于 2019-11-29 02:47:32
Looked at the HTML spec, but couldn't make heads or tails of it: http://www.w3.org/TR/html5/the-input-element.html#attr-input-checked What is the correct way to check a checkbox in HTML (not dynamically)? checked="true" checked="checked" What is the correct way to uncheck a checkbox? <input type="checkbox" /> with no checked attribute checked="false" checked="none" Where to check the HTML specification to check/uncheck a checkbox? <input type="checkbox" checked="checked" /> or simply <input type="checkbox" checked /> for checked checkbox. No checked attribute ( <input type="checkbox" /> ) for

How to count check-boxes using jQuery?

六眼飞鱼酱① 提交于 2019-11-28 17:12:07
I have tons of checkboxes that are either checked ( checked="checked" ) or unchecked. I would like to get the number of all checkboxes, unchecked and checked checkboxes. With check-box I mean <input type="checkbox" /> . How to do it with jQuery? Thanks in advance! Nicola Peluchetti You could do: var numberOfChecked = $('input:checkbox:checked').length; var totalCheckboxes = $('input:checkbox').length; var numberNotChecked = totalCheckboxes - numberOfChecked; EDIT Or even simple var numberNotChecked = $('input:checkbox:not(":checked")').length; Nguyễn Thành Bồi The following code worked for me.

Javascript count checked checkbox

旧时模样 提交于 2019-11-28 13:55:05
I know that may have a few similar questions @stackoverflow, but I didnt found any solution to my problem yet :s <?php while($rowVideo = mysql_fetch_array($ResultQueryVideo)) { ?> <input type="checkbox" name = "checkbox-1[]" class="checkbox" value ="<?php echo $rowVideo['idVideo'] ?>" /> <?php....some code... This results a few checkbox's, the same number as idVideo..thats the point. Now, before the submit, I need to be sure that at least one checkbox is checked. But i was not sucesseful :x function isCountCheck (helperMsg) { var chkCnt = 0; var Frm = document.forms[0]; var dLen = Frm.length -

knockout checked binding doesn't update

房东的猫 提交于 2019-11-28 09:36:07
问题 I have list of objects I can select. I made a select all checkbox to click which selects all. The selecting works, but it doesn't update the checkbox value itself. Also, deselecting doesn't work, because the value is never true. //html <input type="checkbox" data-bind="checked: selecAllBT, click: selectAll" /> Select all //other stuff //JS self.selecAllBT = ko.observable(false); self.selectAllBodyTypes = function (self) { for (i = 0; i < self.items().length; i++) { if (self.selecAllBT() !=