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How to convert the background to transparent? [closed]
...gging the image around in your browser for visibility,
the gray background and the border is not part of the image]
File menu/Save Image
GIF/PNG/ICO image file formats support transparency, JPG doesn't!
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Detect rotation of Android phone in the browser with JavaScript
I know that in Safari on an iPhone you can detect the screen's orientation and change of orientation by listening for the onorientationchange event and querying window.orientation for the angle.
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Rails 4: before_filter vs. before_action
...ore_filter.
However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1
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Compiling dynamic HTML strings from database
...atabase. When the user flips to the next page, a called to the DB is made, and the pageContent var is set to this new HTML, which gets rendered onscreen through ng-bind-html-unsafe. Here's the code:
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Is there a fixed sized queue which removes excessive elements?
I need a queue with a fixed size. When I add an element and the queue is full, it should automatically remove the oldest element.
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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
...t declared as a "new-style" class. Change it like so:
class B(object):
and it will work.
super() and all subclass/superclass stuff only works with new-style classes. I recommend you get in the habit of always typing that (object) on any class definition to make sure it is a new-style class.
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Loading basic HTML in Node.js
I'm trying to find out how to load and render a basic HTML file so I don't have to write code like:
19 Answers
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How can I tell gcc not to inline a function?
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The asm("") construct is actually fairly cross-platform and got the job done. I did it for x86 Linux and it did not cause a build problem on PowerPC AIX. Thanks for this useful suggestion!
– Marty
Nov 6 '14 at 23:58
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Margin on child element moves parent element
...rent { overflow: hidden; }
This prevents the margins to collapse. Border and padding do the same.
Hence, you can also use the following to prevent a top-margin collapse:
.parent {
padding-top: 1px;
margin-top: -1px;
}
Update by popular request:
The whole point of collapsing margins is...
Practical use of `stackalloc` keyword
... native allocator (like malloc or the .Net equivalent) you also gain speed and automatic deallocation on scope exit.
Performance wise, if you use stackalloc you greatly increase the chance of cache hits on the CPU due to the locality of data.
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