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Add timestamps to an existing table
...add_column :users, :updated_at, :datetime, null: false, default: Time.zone.now. Time.zone.now is just an example, you should use whatever value makes sense for your logic.
– Delong Gao
Jul 30 '19 at 23:46
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How to center align the cells of a UICollectionView?
...ine. The first 0, is the top edge argument, you could adjust that one too, if you want to center the content vertically in the screen.
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Allow user to select camera or gallery for image
... void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == YOUR_SELECT_PICTURE_REQUEST_CODE) {
final boolean isCamera;
if (data == null) {
isCamera = true;
} else {
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How to add one day to a date? [duplicate]
... as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. And the Joda-Time project is now in maintenance mode, with the team advising migration to the java.time classes.
– Basil Bourq...
What is 'YTowOnt9'?
...do too, but when they are empty they are all the same. It makes it look as if a lot of very different PHP scripts have this random string in common.
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Should URL be case sensitive?
...There may be URLs, or parts of URLs, where case doesn't matter, but
identifying these may not be easy. Users should always consider that
URLs are case-sensitive.
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UIViewContentModeScaleAspectFill not clipping
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[_photoview setClipsToBounds:YES];
Or directly in your Storyboard / Xib if you can :
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How do I force a UITextView to scroll to the top every time I change the text?
...ote setContentOffset:CGPointZero animated:YES];
This does it for me.
Swift version (Swift 4.1 with iOS 11 on Xcode 9.3):
note.setContentOffset(.zero, animated: true)
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Incrementing in C++ - When to use x++ or ++x?
...and please note that in a for loop, on primatives, there is absolutely no difference. Many coding styles will recommend never using an increment operator where it could be misunderstood; i.e., x++ or ++x should only exist on its own line, never as y=x++. Personally, I don't like this, but it's unco...
getting date format m-d-Y H:i:s.u from milliseconds
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You can readily do this this with the input format U.u.
$now = DateTime::createFromFormat('U.u', microtime(true));
echo $now->format("m-d-Y H:i:s.u");
This produces the following output:
04-13-2015 05:56:22.082300
From the PHP manual page for date formats:
U = Seconds sin...