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grep a tab in UNIX
... That's very good for GNU UNIX, but what about POSIX Solaris, AIX and HP-UX? Those don't know anything about -P option.
– rook
Aug 5 '13 at 15:17
22
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How to determine if an NSDate is today?
...uff
}
Edit:
I like stefan's method more, I think it makes for a cleaner and more understandable if statement:
NSCalendar *cal = [NSCalendar currentCalendar];
NSDateComponents *components = [cal components:(NSCalendarUnitEra | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay) fromDate...
WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
...E if you don't care about phantom data. SERIALIZABLE is REALLY restrictive and should almost never be used (except for example in some critical financial applications).
– Kryptos
Sep 9 '15 at 17:17
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Why does PHP 5.2+ disallow abstract static class methods?
After enabling strict warnings in PHP 5.2, I saw a load of strict standards warnings from a project that was originally written without strict warnings:
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Convert Java Array to Iterable
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2nd and 3rd lines are options i would say :)
– fmucar
Apr 26 '12 at 15:37
1
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What is “callback hell” and how and why does RX solve it?
...xplains what is a "callback hell" for someone who does not know JavaScript and node.js ?
8 Answers
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.bashrc at ssh login
...ogue .bash_profile. It was created by the RVM install. I moved the RVM command to .profile and delete .bash_profile. All running fine now.
– Rod Daunoravicius
Oct 25 '13 at 10:02
4...
Check synchronously if file/directory exists in Node.js
...version of lstat, etc.
lstatSync tells you both whether something exists, and if so, whether it's a file or a directory (or in some file systems, a symbolic link, block device, character device, etc.), e.g. if you need to know if it exists and is a directory:
var fs = require('fs');
try {
// Q...
How to set a JVM TimeZone Properly
...ault GMT timezone instead of an OS defined timezone. My JDK version is 1.5 and the OS is Windows Server Enterprise (2007)
7...
How to sort an array in descending order in Ruby
...y
require 'benchmark'
ary = []
1000.times {
ary << {:bar => rand(1000)}
}
n = 500
Benchmark.bm(20) do |x|
x.report("sort") { n.times { ary.sort{ |a,b| b[:bar] <=> a[:bar] } } }
x.report("sort reverse") { n.times { ary.sort{ |a,b| a[:bar] <=> b[:bar...