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How to send POST request?
... Thanks @xilopaint and ArashHatami for the syntax error. Corrected now.
– Pranzell
Jun 19 '19 at 13:16
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How to rollback just one step using rake db:migrate
... step, I think using VERSION=n is the right way to do that, but I don't know the correct value of n to use. Is there any command to check the current n value?
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Is there any way to change input type=“date” format?
... web realm, and one of the most exciting is the landing of web components. Now you can solve this issue elegantly with a custom HTML5 element designed to suit your needs. If you wish to override/change the workings of any html tag just build yours playing with the shadow dom.
The good news is that...
Why is volatile needed in C?
...ef struct
{
int command;
int data;
int isbusy;
} MyHardwareGadget;
Now you want to send some command:
void SendCommand (MyHardwareGadget * gadget, int command, int data)
{
// wait while the gadget is busy:
while (gadget->isbusy)
{
// do nothing here.
}
// set data first:
...
How to use JavaScript variables in jQuery selectors?
... method = $this.data('method') || 'hide';
target[method]();
});
Now you can completely control which element you're targeting and what happens to it via the HTML. For example, you could use data-target=".some-class" and data-method="fadeOut" to fade-out a collection of elements.
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How do I fetch lines before/after the grep result in bash?
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Nice, ive had to look this up a few times now, maybe I can remember it as -A(FTER) -B(EFORE) -C(ONTEXT)
– Opentuned
Aug 30 '18 at 13:47
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Android.app Fragments vs. android.support.v4.app using ViewPager?
...ragments, the ones in v13 with native fragments.
The reason why there are now two fragment implementations is historical: Fragments in the android.app package were introduced with Android 3 for tablets only and the support library was created to bring fragments to phones running older versions. On ...
The “backspace” escape character '\b': unexpected behavior?
...ut erasing (on your terminal):
hello worl
^
Note the cursor is now on the r. Then it outputs d, which overwrites the r and gives us:
hello wodl
^
Finally, it outputs \n, which is a non-destructive newline (again, on most terminals, including apparently yours), so the l is le...
Make div (height) occupy parent remaining height
... wish to support.
Flexbox
CSS3's Flexible Box Layout Module (flexbox) is now well-supported and can be very easy to implement. Because it is flexible, it even works when #up does not have a defined height.
#container { display: flex; flex-direction: column; }
#down { flex-grow: 1; }
It's import...
What's so wrong about using GC.Collect()?
...that respectable programmers wouldn't ever use, even those who don't even know what it is for.
20 Answers
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