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background-size in shorthand background property (CSS3)
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Selected as answer for this part: It seems to be a case of "not supported by this browser yet" case.
– Mohsen
Oct 24 '11 at 21:39
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Programmatically fire button click event?
...[btn sendActionsForControlEvents:UIControlEventTouchUpInside];
[btn performSelector:@selector(setHighlighted:) withObject:NO afterDelay:0.25];
This will programmatically hit the button and highlight it for a seemingly normal amount of time. Richie's suggestion didn't work as the button was only h...
How to create a library project in Android Studio and an application project that uses the library p
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To create a library:
File > New Module
select Android Library
To use the library add it as a dependancy:
File > Project Structure > Modules > Dependencies
Then add the module (android library) as a module dependency.
Run your project. It will wo...
How to use Chrome's network debugger with redirects
...olution to debug the Network calls before redirecting to other pages is to select the beforeunload event break point
This way you assure to break the flow right before it redirecting it to another page, this way all network calls, network data and console logs are still there.
This solution is bes...
How does the const constructor actually work?
...ting-widgets-b7ac56dbbeb1 "Use const to build your widgets Without const, selective rebuilding of the sub-tree does not happen. Flutter creates a new instance of each widget in the sub-tree and calls build() wasting precious cycles especially if your build methods are heavy."
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How to design a multi-user ajax web application to be concurrently safe
...resolver JS, is allowed another attempt to change the value.
Once the user selected a value he deems right, the process starts over from case 2 (or case 3 if someone else was faster, again)
Some words on Performance & Scalability
HTTP Polling vs. HTTP "pushing"
Polling creates requests, one...
How to profile a bash shell script slow startup?
...e set -x later and set +x earlier (or bracket several sections of interest selectively).
Although it's not as fine-grained as GNU date's nanoseconds, Bash 5 includes a variable which gives the time in microseconds. Using it saves you from spawning an external executable for every line and works on ...
What are all the differences between src and data-src attributes?
...that can contain a URL, then use data-src or any data-xxx that you want to select.
MDN documentation on data-xxxx attributes: https://developer.mozilla.org/en-US/docs/DOM/element.dataset
Example of src on an image tag where the image loads the JPEG for you and displays it:
<img id="myImage" sr...
Check if a string is html or not
...bject|ol|optgroup|output|p|pre|progress|q|rp|rt|ruby|s|samp|script|section|select|small|span|strike|strong|style|sub|summary|sup|table|tbody|td|textarea|tfoot|th|thead|time|title|tr|track|tt|u|ul|var|video).*?<\/\2>/i.test(htmlStringHere)
This does proper validation as it contains ALL HTML ...
UINavigationBar custom back button without title
...se that you have a navigation controller going to ViewA from ViewB. In IB, select ViewA's navigation bar, you should see these options: Title, Prompt and Back Button.
ViewA navigate bar options
The trick is choose your destiny view controller back button title (ViewB) in the options of previous ...