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What does auto do in margin:0 auto?
...e object that you have applied margin: 0 auto to, the object will sit centrally within it's parent container.
Specifying auto as the second parameter basically tells the browser to automatically determine the left and right margins itself, which it does by setting them equally. It guarantees that t...
How do I check whether a checkbox is checked in jQuery?
... of jQuery
// Assuming an event handler on a checkbox
if (this.checked)
All credit goes to Xian.
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Retrieve the maximum length of a VARCHAR column in SQL Server
...at, but many will realize that it is a reserved word for Descending. Personally, I started off by using this, and then trying to figure out where the column name went because all I had were reserved words. It didn't take long to figure it out, but keep that in mind when deciding on what to substitu...
How to keep one variable constant with other one changing with row in excel
...ing the formula into new cells.
Since you are dragging across rows, you really only need to freeze the row part:
=(B0+4)/A$0
Keyboard Shortcuts
Commenters helpfully pointed out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:...
Create empty file using python [duplicate]
...mknod("newfile.txt") (but it requires root privileges on OSX). The system call to create a file is actually open() with the O_CREAT flag. So no matter how, you'll always open the file.
So the easiest way to simply create a file without truncating it in case it exists is this:
open(x, 'a').close()
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How do I copy folder with files to another folder in Unix/Linux? [closed]
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i wonder why this exact command in dockerfile copies all source directory files into destination, instead of copying just whole directory.
– holms
Mar 29 '17 at 0:17
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$(document).ready shorthand
...st the $ variable to its own block so it doesn't cause conflicts. You typically see the pattern used by jQuery plugins to ensure that $ == jQuery.
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