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Change string color with NSAttributedString?
I have a slider for a survey that display the following strings based on the value of the slider: "Very Bad, Bad, Okay, Good, Very Good".
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AngularJS and its use of Dollar Variables
...across $scope.$value and $scope.value , then it will avoid checking the former since it's prefixed with a dollar character in its variable name?
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Execute code when Django starts ONCE only?
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Update from Pykler's answer below: Django 1.7 now has a hook for this
Don't do it this way.
You don't want "middleware" for a one-time startup thing.
You want to execute code in the top-level urls.py. That module is imported and executed once.
urls.py
from django.confs.urls.def...
How to test code dependent on environment variables using JUnit?
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The library System Lambda has a method withEnvironmentVariables for setting environment variables.
public void EnvironmentVariablesTest {
@Test
public void setEnvironmentVariable() {
String value = withEnvironmentVariable("name", "value")
.execute(() -> System.getenv("nam...
How do I get only directories using Get-ChildItem?
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For PowerShell versions less than 3.0:
The FileInfo object returned by Get-ChildItem has a "base" property, PSIsContainer. You want to select only those items.
Get-ChildItem -Recurse | ?{ $_.PSIsContainer }
If you want th...
How to exit a function in bash
... condition is true without killing the whole script, just return back to before you called the function.
3 Answers
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Immutability of Strings in Java
...change what it points to, but not that which it points at.
Take this code, for example:
String s1 = "Hello";
String s2 = s1;
// s1 and s2 now point at the same string - "Hello"
Now, there is nothing1 we could do to s1 that would affect the value of s2. They refer to the same object - the string "He...
What difference is there between WebClient and HTTPWebRequest classes in .NET?
...traction built on top of HttpWebRequest to simplify the most common tasks. For instance, if you want to get the content out of an HttpWebResponse, you have to read from the response stream:
var http = (HttpWebRequest)WebRequest.Create("http://example.com");
var response = http.GetResponse();
var s...
How to use a decimal range() step value?
...age and adds a lot of overhead in terms of dependency-management, storage (for the package itself) etc. Depending on what the developer is doing, it may be impossible to use it.
– rbaleksandar
May 24 '17 at 13:56
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How to add http:// if it doesn't exist in the URL?
...below, I've come to the conclusion that addscheme is better in terms of performance: $url = "www.google.com"; $init = microtime(true); for( $i = 1; $i < 100000; $i++ ) { addScheme( $url ); } echo microtime(true) - $init; echo "<BR>"; $init = microtime(true); for( $i = 1; $i < 100000...