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How to output only captured groups with sed?
...)[^0-9]*/\1 /gp'
123 456
That works for any count of digit runs:
$ str='Test Num(s) 123 456 7899900 contained as0018166df in text'
$ echo "$str" | sed -En 's/[^0-9]*([0-9]{1,})[^0-9]*/\1 /gp'
123 456 7899900 0018166
Which is very similar to the grep command:
$ str='Test Num(s) 123 456 7899900 ...
When to use PNG or JPG in iPhone development?
... better than higher quality JPGs. So from a performance standpoint from fastest to slowest it would go low quality JPG, high quality JPG, PNG Crushed, PNG.
If you need to download PNGs you should consider crushing the PNGs on the server before the download.
http://www.cocoanetics.com/2011/10/avoid...
What is the difference between up-casting and down-casting with respect to class variable
... is where is should introduce an useful feature called "instanceof", which tests if an object is instance of some Class.
Cat c1 = new Cat();
Animal a = c1; //upcasting to Animal
if(a instanceof Cat){ // testing if the Animal is a Cat
System.out.println("It's a Cat! N...
Scroll back to the top of scrollable div
...
@s12345 You'd better make a reproducible test case showing us your problem (e.g. on jsfiddle.net) and say what OS/browser/version you're experiencing this on.
– Phrogz
May 24 '12 at 20:09
...
How do you Encrypt and Decrypt a PHP String?
...zero($ciphertext);
sodium_memzero($key);
return $plain;
}
Then to test it out:
<?php
// This refers to the previous code block.
require "safeCrypto.php";
// Do this once then store it somehow:
$key = random_bytes(SODIUM_CRYPTO_SECRETBOX_KEYBYTES);
$message = 'We are all living in a yel...
CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
...xample for unstanding the fat arrow
not works: (@canvas undefined)
class Test
constructor: ->
@canvas = document.createElement 'canvas'
window.addEventListener 'resize', ->
@canvas.width = window.innerWidth
@canvas.height = window.innerHeight
works: (@canvas defined)
...
Easiest way to compare arrays in C#
...) == array2.Count() && !array1.Except(array2).Any();
}
}
The test code looks like:
class Program
{
static void Main(string[] args)
{
int[] a1 = new int[] { 1, 2, 3 };
int[] a2 = new int[] { 3, 2, 1 };
int[] a3 = new int[] { 1, 3 };
int[] a4 = nu...
Create code first, many to many, with additional fields in association table
...
@Esteban, the code you provided is right, thanks, but incomplete, I've tested it. There are missing properties in "UserEmail" class:
public UserTest UserTest { get; set; }
public EmailTest EmailTest { get; set; }
I post the code I've tested if someone is interested.
Regards
using Sys...
Nesting await in Parallel.ForEach
...nd post those to the getCustomerBlock. At least that's what I found when I tested this suggestion.
– JasonLind
Dec 16 '15 at 22:23
4
...
Ignore mouse interaction on overlay image
... Yup -- This is the good stuff. It also works in suppressing hit-testing for elements with no backgrounds set that are being used as containers for other items (that you actually do want to hit-test.)
– Armentage
Feb 8 '12 at 5:22
...