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MySQL stored procedure vs function, which would I use when?
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105
You can't mix in stored procedures with ordinary SQL, whilst with stored function you can.
e.g...
How do I close an open port from the terminal on the Mac?
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408
Find out the process ID (PID) which is occupying the port number (e.g., 5955) you would like t...
How to get current time in milliseconds in PHP?
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The short answer is:
$milliseconds = round(microtime(true) * 1000);
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Format date and time in a Windows batch script
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150
I ended up with this script:
set hour=%time:~0,2%
if "%hour:~0,1%" == " " set hour=0%hour:~1,1%...
Set operations (union, intersection) on Swift array?
...tring> = Set(array1)
let set2:Set<String> = Set(array2)
Swift 3.0+ can do operations on sets as:
firstSet.union(secondSet)// Union of two sets
firstSet.intersection(secondSet)// Intersection of two sets
firstSet.symmetricDifference(secondSet)// exclusiveOr
Swift 2.0 can calculate on ar...
Check whether a string matches a regex in JS
... regex.test() if all you want is a boolean result:
console.log(/^([a-z0-9]{5,})$/.test('abc1')); // false
console.log(/^([a-z0-9]{5,})$/.test('abc12')); // true
console.log(/^([a-z0-9]{5,})$/.test('abc123')); // true
...and you could remove the () from your regexp since you've no n...
Best way to iterate through a Perl array
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answered May 7 '12 at 20:00
ikegamiikegami
308k1414 gold badges212212 silver badges451451 bronze badges
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Generate random int value from 3 to 6
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10 Answers
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An example of how to use getopts in bash
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#!/bin/bash
usage() { echo "Usage: $0 [-s <45|90>] [-p <string>]" 1>&2; exit 1; }
while getopts ":s:p:" o; do
case "${o}" in
s)
s=${OPTARG}
((s == 45 || s == 90)) || usage
;;
p)
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Checking if a string can be converted to float in Python
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Richard Simões
10.6k44 gold badges3737 silver badges4949 bronze badges
answered Apr 9 '09 at 21:55
dbrdbr
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