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Using ChildActionOnly in MVC
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FYI, [ChildActionOnly] is not available in ASP.NET MVC Core.
see some info here
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Designing function f(f(n)) == -n
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@Rui Craverio: It wouldn't work in .NET 3.5+ because the author chose to use the var keyword as a variable name.
– Kredns
Jun 3 '09 at 21:40
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Which Java Collection should I use?
...in your collection.
Here is the complete explanation http://javatutorial.net/choose-the-right-java-collection , including flowchart etc
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What special characters must be escaped in regular expressions?
...eSQL, PowerGREP, PowerShell, Python, REALbasic, Real Studio, Ruby, TCL, VB.Net, VBScript, wxWidgets, XML Schema, Xojo, XRegExp.PCRE compatibility may vary
Anywhere: . ^ $ * + - ? ( ) [ ] { } \ |
Legacy RegEx Flavors (BRE/ERE)
Includes awk, ed, egrep, emacs, GNUlib, grep, PHP (ereg), MySQL, ...
Resize HTML5 canvas to fit window
...y above.
Works in Firefox (tested in v29), Chrome (tested in v34) and Internet Explorer (tested in v11).
<!DOCTYPE html>
<html>
<head>
<style>
html,
body {
width: 100%;
height: 100%;
margin: 0;
}
can...
Dependency injection through constructors or property setters?
...t Mark Seemann calls a local default in his book "Dependency Injection in .NET": the dependency is optional because you can provide a fine working implementation but want to allow the caller to specify a different one if needed.
(Former answer below)
I think that constructor injection are better...
Representing null in JSON
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Let's evaluate the parsing of each:
http://jsfiddle.net/brandonscript/Y2dGv/
var json1 = '{}';
var json2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.pa...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
...ime I try to save my contact, which is validated I get the exception "ADO.Net Entity Framework An entity object cannot be referenced by multiple instances of IEntityChangeTracker"
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Calculate MD5 checksum for a file
... use SHA-256 just out of habit :) I don't know about support for CRC32 in .NET offhand, but you can probably search for it as quickly as I can :)
– Jon Skeet
Jul 30 '14 at 13:40
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Why use sprintf function in PHP?
I am trying to learn more about the PHP function sprintf() but php.net did not help me much as I am still confused, why would you want to use it?
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