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How to add 30 minutes to a JavaScript Date object?
...(date, minutes) {
return new Date(date.getTime() + minutes*60000);
}
And just in case this is not obvious, the reason we multiply minutes by 60000 is to convert minutes to milliseconds.
Be Careful with Vanilla Javascript. Dates Are Hard!
You may think you can add 24 hours to a date to get to...
ImportError: No module named PIL
I use this command in the shell to install PIL:
22 Answers
22
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How to print Boolean flag in NSLog?
...@ changes as follows
For Strings you use %@
For int you use %i
For float and double you use %f
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Java NIO FileChannel versus FileOutputstream performance / usefulness
... nio FileChannel versus normal FileInputStream/FileOuputStream to read and write files to filesystem. I observed that on my machine both perform at the same level, also many times the FileChannel way is slower. Can I please know more details comparing these two methods. Here is the code I used...
Label under image in UIButton
...ews in the button's superview. Only suggestion is to use CGRectGetHeight() and CGRectGetWidth() when getting the imageView and titleLabel height and width.
– Jesse
Oct 24 '14 at 18:35
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What is the proper way to check if a string is empty in Perl?
... comparisons in Perl, use eq or ne:
if ($str eq "")
{
// ...
}
The == and != operators are numeric comparison operators. They will attempt to convert both operands to integers before comparing them.
See the perlop man page for more information.
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How do PHP sessions work? (not “how are they used?”)
Session files are usually stored in, say, /tmp/ on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work.
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Git error on git pull (unable to update local ref)
I only have branch master and im getting this error every time i try to "git pull":
18 Answers
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Flex-box: Align last row to grid
...d to pollute your HTML. Here is a codepen showing it: http://codepen.io/DanAndreasson/pen/ZQXLXj
.grid {
display: flex;
flex-flow: row wrap;
justify-content: space-between;
}
.grid::after {
content: "";
flex: auto;
}
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Is there a short cut for going back to the beginning of a file by vi editor?
...g a file using vi
1) You can press Shift + g to go the end of the file
and
2) Press g twice to go to the beginning of the file
NOTE : - g is case-sensitive (Thanks to @Ben for pointing it out)
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