javascript-events

Problem in getting right result for select box

由 不羁岁月 提交于 2019-12-25 03:58:22
问题 i am using Jquery as: $(document).ready(function(){ test("price"); alert("hi"); $("#item2").change(function() { sort= $("#item2").val(); test(sort); }); }); function test() is some javascript function, my problem is when page loads function calls by "price" parameter .Now when i select some item from select box function test() is called using sort parameter (verify by alert box). but i am not getting the correct result. i mean when i select option from select box than also my result of test()

How to store URL of clicked hyperlink

由 那年仲夏 提交于 2019-12-25 03:57:09
问题 I am displaying a warning dialog box whenever user tries to navigate from current page without saving data on current page. Its working fine now I want to call a function (Spring controller, its kind of java function which handled URL mappings ) when user clicks on Ok (in warning dialog box) and then he should get redirectd to desired page. Let me try to make it simple (Its confusing for me also) 1) User is on registration page, he/she made some changes and didn't save it. 2) Now user clicked

when is the Javascript event loop triggered in a HTML page?

由 两盒软妹~` 提交于 2019-12-25 03:25:47
问题 I'am aware that the JS function (i.e. setTimeout(function(){...}, TIME)) places the function it received as a parameter in the Browser's event loop, and that this event loop will be processed after all inline/synchronous JS call are processed. But what actually happens when he have the following HTML page structure: <html> <head> <script> MANY INLINED SCRIPTS </script> <script src="file.js"></script> <script> setTimeout(function(){...}, TIME)</script> . . . and the page goes, with probably

How to use JavaScript to dynamically update the Bugzilla Additional Comments textarea?

由 大城市里の小女人 提交于 2019-12-25 03:07:58
问题 I am customising Bugzilla and I need to update the text in the Additional Comments text area on the bug editing page. This text will need to be changed dynamically depending on which status the user selects from the drop down menu. For this im hoping to use the onChange event. Has anyone any suggestions on how to implement this? 回答1: Here is an example that may illustrate one way of doing it: <html> <head> <script> var messages = ['Message 0', 'Message 1', 'Message 2', 'Message 3', 'Message 4

get text box value when i type the value by every press

由 ε祈祈猫儿з 提交于 2019-12-25 03:05:28
问题 i want to know get text box value when i type the value by every press. i have to get the value. if i type numbers i have to get. so i have checking with that value. thanks in advance 回答1: Probably you will have to serve events on input field: onkeypress, onkeyup, onkeydown, onpaste, onchange. 回答2: var my_input = document.getElementById('my_input'); my_input.onkeyup = function() { alert(my_input.value); } <input type='text' id='my_input' /> 回答3: You can get the value of an input element from

jQuery's click() can trigger event handlers only for DOM 0 and event handlers registered through jQuery…?

由 六月ゝ 毕业季﹏ 提交于 2019-12-25 02:57:33
问题 [Update:] This question is related to: what does jQuery's click() do? jQuery's click() is not clicking? The following code: <div id="oneDiv"> some content </div> <p> <a href="http://www.google.com" id="clickme">Click Me</a> </p> [ ... ] onload = function() { $('#clickme').click(function() { $('#oneDiv').css({border: '6px dotted #07d'}) }); document.getElementById('clickme').onclick = function() { document.getElementById('oneDiv').style.color = 'green'; } document.getElementById('clickme')

Mouse click simulates keyboard key in JavaScript

由 和自甴很熟 提交于 2019-12-25 02:41:21
问题 I have situation that in application (HTML/XUL) there are key bindings for some function keys (F5, F7 & F9) in order to communicate with some other application. Now I have to make touch-based interface for same app, without keyboard and advanced touch events. All touch clicks are actually same as mouse clicks and I need to have 3 buttons/links that behave same as F5, F7 & F9 keys. Don't ask for reasons, all I can say is that I need to keep that key bindings. Can I assign mouse click on link

javascript onClick change background picture of div

由 对着背影说爱祢 提交于 2019-12-25 01:37:20
问题 My ultimate goal is to change the background of a div through clicking on the sampla picture. First I wrote this: <a onclick="document.getElementById('sp').style.background="url('/assets/castle.png')"">...<a> but it didn't work. I noticed that the problem was usage of multiple " and '. So put the function into a script tag: <script type="text/javascript"> var pic=""; function showP(pic) { document.getElementById('sp').style.background='url(pic)';}; </script> <a onclick="showP(/assets/castle

Order of events for dynamically added elements and Masked-Input plugin

由 我的梦境 提交于 2019-12-25 01:14:18
问题 So the non-ajax version of my webapp is fine, cause the events are added in the order I want and all the events are added on the cell-phone element in question. But for my ajax app, the events are added 'differently' since the elements are dynamically gotten, so I have the same events but actually on different elements (on '#container' for checking dynamic added elements, and a mask applied directly on '.input-cell-phone'). For example, when user types invalid (215)-###-####, i expect Masked

Best approach to handle “Cannot read property 'addEventListener' of null” errors

由 笑着哭i 提交于 2019-12-25 00:38:24
问题 Currently what i do is checking if element exist in page. But my code has alot if conditions because of that. Jquery event listeners doesnt show errow when element doesnt exist. How jquery handles that and what texniques can i use for better design ? var el = document.getElementById('el'); var another_el = document.getElementById('another_el'); if(another_el){ el.addEventListener('click', swapper, false); } if(el){ el.addEventListener('click', swapper, false); } .... ... 回答1: How jquery
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