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Is there a performance gain in using single quotes vs double quotes in ruby?
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$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assig...
Avoid trailing zeroes in printf()
...n numbers get bigger... but basically typecasting to long, long long or int64 should work.
– Juha
Oct 10 '14 at 18:41
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How to include file in a bash shell script
...u 18.04 and the Bash version is:
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
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Change default global installation directory for node.js modules in Windows?
... x86 installer into C:\Program Files (x86)\nodejs\ on Windows 7 Ultimate N 64-bit SP1
node --version : v0.10.28
npm --version : 1.4.10
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Conceptually, how does replay work in a game?
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Ben SBen S
64.1k2929 gold badges162162 silver badges208208 bronze badges
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How to remove unreferenced blobs from my git repo
...ultiplyByZer0
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answered Feb 6 '13 at 12:06
Sam WatkinsSam Watkins
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Executing a command stored in a variable from PowerShell
...Expression so you could do:
iex $cmd1
For a full list :
Visit https://ss64.com/ps/ for more Powershell stuff.
Good Luck...
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I don't understand -Wl,-rpath -Wl,
...s anyone had success in setting the rpath on OS X, i.e. with clang & ld64?
– ben-albrecht
Mar 12 '18 at 19:41
What...
Is there a command to refresh environment variables from the command prompt in Windows?
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It works for me in PowerShell, @craq . Running Windows10 x64.
– mazunki
Mar 15 '19 at 23:08
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...ATE TABLE test (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
data VARCHAR(64) DEFAULT NULL,
ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (id)
);
mysql> REPLACE INTO test VALUES (1, 'Old', '2014-08-20 18:47:00');
Query OK, 1 row affected (0.04 sec)...