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What is a vertical tab?
...rm footer. Generally it was coded in the program as a character constant. From the keyboard, it would be CTRL-K.
I don't believe anyone would have a reason to use it any more. Most forms are generated in a printer control language like postscript.
@Talvi Wilson noted it used in python '\v'.
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Label Alignment in iOS 6 - UITextAlignment deprecated
...ely important factor. That it might break in the future is just bad design from Apple, and if they break it I would rather have compilation errors than risking that the alignment gets wrong without me noticing.
– Robin Andersson
Nov 14 '12 at 12:45
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Array.size() vs Array.length
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.size() is jQuery's, much probably you're either confusing with or took from someone else who had imported the jQuery library to his project.
If you'd have jQuery imported and you'd write like $(array).size(), it would return the array length.
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Regular expression to match numbers with or without commas and decimals in text
... fair point. It might work with the latest edit. BTW, your downvote wasn't from me, since you pointed out the potential 1,11,11 match.
– Justin Morgan
May 6 '11 at 23:57
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How do I change the number of open files limit in Linux? [closed]
...ile. For instance, the hard open file limit on Solaris can be set on boot from /etc/system.
set rlim_fd_max = 166384
set rlim_fd_cur = 8192
On OS X, this same data must be set in /etc/sysctl.conf.
kern.maxfilesperproc=166384
kern.maxfiles=8192
Under Linux, these settings are often in /etc/sec...
Python's time.clock() vs. time.time() accuracy?
...ure, the TC timeout expired and the test case was aborted. I had to switch from time.time() to time.clock() to handle this properly.
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Postgresql: Scripting psql execution with password
...D = postgres psql -h 192.168.3.200 -U postgres incx_um << EOF DELETE FROM usrmgt.user_one_time_codes WHERE time < NOW() - INTERVAL '30 minute' EOF
– Govind Gupta
Aug 14 '18 at 9:37
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How to create border in UIButton?
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Here's an updated version (Swift 3.0.1) from Ben Packard's answer.
import UIKit
@IBDesignable class BorderedButton: UIButton {
@IBInspectable var borderColor: UIColor? {
didSet {
if let bColor = borderColor {
self.layer.b...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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Curious to know... Reading this from an iPad, so can't test them in 1.9, but some of those gotchas are no longer valid in recent ruby versions, right?
– Denis de Bernardy
Jun 22 '11 at 18:59
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Python extract pattern matches
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You need to capture from regex. search for the pattern, if found, retrieve the string using group(index). Assuming valid checks are performed:
>>> p = re.compile("name (.*) is valid")
>>> result = p.search(s)
>>> resul...