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How do I negate a condition in PowerShell?
...ld also use bitwise exclusive or, though it's not the most readable/understandable method.
if ((test-path C:\code) -bxor 1) {write "it doesn't exist!"}
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#import using angle brackets < > and quote marks “ ”
..." for files in your project that you've got the implementation source to, and angle brackets <> when you're referencing a library or framework.
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'const string' vs. 'static readonly string' in C#
...e a const value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-compile it.
A static readonly string is a normal field that gets looked up at runtime. Therefore, if the field's value is changed in a different ass...
IBOutlet and IBAction
What is the purpose of using IBOutlets and IBActions in Xcode and Interface Builder?
10 Answers
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How long does it take for GitHub page to show changes after changing index.html
...t (or break a cache) you can append a query string like myfile.jpg?ver=123 and every time you update the string the cache will bust, and you can verify that the CDN is updating.
– Joel Glovier
Dec 19 '16 at 14:10
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Import module from subfolder
... What would the syntax be if previously Foo1 was in the parent directory and one coded something like from Foo1 import *. Is there a way to achieve that same effect so you don't have to prefix everything with Foo1?
– jxramos
Apr 12 '17 at 23:41
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How to replace a set of tokens in a Java String?
...efficient way would be using a matcher to continually find the expressions and replace them, then append the text to a string builder:
Pattern pattern = Pattern.compile("\\[(.+?)\\]");
Matcher matcher = pattern.matcher(text);
HashMap<String,String> replacements = new HashMap<String,String&...
Clear Application's Data Programmatically
...ationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)context.getSystemService(ACTIVITY_SERVICE))
.clearApplicationUserData(); // note: it has a return value!
} else {
// ...
Django optional url parameters
...to rename the product kwarg to product_id, you only have to change line 4, and it will affect the below URLs.
Edited for Django 1.8 and above
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How to darken a background using CSS?
...HOLE body. Is there any way I can just make the background-image darker, and not everything else?
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