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How to sort an array in Bash
...FS=$'\n' sorted=($(sort <<<"${array[*]}"))
unset IFS
Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]...
Datatype for storing ip address in SQL Server
...The technically correct way to store IPv4 is binary(4), since that is what it actually is (no, not even an INT32/INT(4), the numeric textual form that we all know and love (255.255.255.255) being just the display conversion of its binary content).
If you do it this way, you will want functions to c...
SourceKitService Terminated
I am having a issue with Xcode where the error "Source Kit Service Terminated" is popping up and all syntax highlighting and code completion is gone in Swift. How can I fix this?
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Is it possible to download an old APK for my app from Google Play?
...my old versions? The Google Play developer console shows my old APKs, but without a download link. I tried "Real APK Leecher", but that doesn't let you choose the APK version you want to download. And I'm not able to even temporarily reactivate the old version in the Developer Console since it compl...
What is the correct syntax of ng-include?
...L snippet inside of an ng-repeat , but I can’t get the include to work. It seems the current syntax of ng-include is different than what it was previously: I see many examples using
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Difference between PCDATA and CDATA in DTD
...follow
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edited Jul 3 '16 at 20:15
danwellman
7,79755 gold badges4646 silver badges7474 bronze badges
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How to access random item in list?
...ck a button and then randomly pick out a string from that list and display it in a messagebox.
12 Answers
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Check if a JavaScript string is a URL
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A related question with an answer:
Javascript regex URL matching
Or this Regexp from Devshed:
function validURL(str) {
var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
'((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // doma...
What are the differences between NP, NP-Complete and NP-Hard?
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I assume that you are looking for intuitive definitions, since the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions.
Decision problem: A problem with a yes or ...
WebSockets protocol vs HTTP
...y blogs and discussions about websocket and HTTP, and many developers and sites strongly advocate websockets, but i still can not understand why.
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