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Changing the selected option of an HTML Select element
...t;/option>
<option>Fish</option>
</select>
<button id="btn">Select Fish</button>
jQuery
But if you really want to use jQuery:
var val = 'Fish';
$('#btn').on('click', function() {
$('#sel').val(val);
});
var val = 'Fish';
$('#btn').on('click',...
GitHub: How to make a fork of public repository private?
...:
Use the GitHub UI to create a fork of the public repo (the small "Fork" button at the top right of the public repo page). Then:
git clone https://github.com/yourname/the-fork.git
cd the-fork
git remote add private_repo_yourname https://github.com/yourname/private-repo.git
git checkout -b pull_re...
Open popup and refresh parent page on close popup
..."refreshAndClose();">
but as a good UI design, you should use a Close button because it's more user friendly. see code below.
<script type="text/javascript">
$(document).ready(function () {
$('#btn').click(function () {
window.opener.location.reload(true);
...
Set margins in a LinearLayout programmatically
I'm trying to use Java ( not XML ) to create a LinearLayout with buttons that fill the screen, and have margins. Here is code that works without margins:
...
When does invoking a member function on a null instance result in undefined behavior?
...ber that succeeding falls within the universe of "undefined"!
Microsoft's MFC function GetSafeHwnd actually relies on this behavior. I don't know what they were smoking.
If you're calling a virtual function, the pointer must be dereferenced to get to the vtable, and for sure you're going to get UB...
动态组件使用指导 · App Inventor 2 中文网
...放一个空的布局当容器。
组件类型写英文类型名，如 Button、Label、HorizontalArrangement；也可以传一个现有组件（创建同类型的新组件，拓展组件用这种办法）。
动态组件的事件用「任意组件」积木接：在代码块编辑器左侧「任...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
...nly attribute. Most notable, the <SELECT> , <OPTION> , and <BUTTON> elements do not have readonly
attributes (although they both have disabled attributes)
Browsers provide no default overridden visual feedback that the form element is read only. (This can be a problem… see be...
How do I capture response of form.submit
... Say if you wanted to post to a URL for a download through a button click? Now you can't use Ajax for your request. Want to then clean up or update the interface when the download is complete? Now is a time to want a callback from a POST that isn't Ajax. (Necropost, I know.)
...
Build an iOS app without owning a mac? [closed]
...you need to start by holding down the Shift key while pressing the Restart button in the start menu. Then you will get a blue screen with some options. Choose "Troubleshoot", then "Advanced options", then "UEFI Firmware Settings", then "Restart". Then your computer will restart and open the BIOS dir...
Change URL and redirect using jQuery
... in the browser history. Therefore, on the new location, clicking the back button in your browser would make you go back to the page you were viewing before you visited the document containing the redirecting JavaScript.
window.location = url redirects to the new location. On this new page, the back...