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Method call if not null in C#
...void SafeInvoke(this Action action) {
if(action != null) action();
}
now this is valid:
Action act = null;
act.SafeInvoke(); // does nothing
act = delegate {Console.WriteLine("hi");}
act.SafeInvoke(); // writes "hi"
In the case of events, this has the advantage of also removing the race-con...
Android Reading from an Input stream efficiently
....readLine()) != null; ) {
total.append(line).append('\n');
}
You can now use total without converting it to String, but if you need the result as a String, simply add:
String result = total.toString();
I'll try to explain it better...
a += b (or a = a + b), where a and b are Strings, copie...
Scroll Element into View with Selenium
...
Based on the newest version of selenium (2.53), this is now a great helper solution. Selenium is not always scrolling the element into view, so this definitely comes in handy.
– Zoidberg
Apr 12 '16 at 12:46
...
Call a global variable inside module
...
For those who didn't know already, you would have to put the declare statement outside your class just like this:
declare var Chart: any;
@Component({
selector: 'my-component',
templateUrl: './my-component.component.html',
styleUrls: ['./m...
How can I add a boolean value to a NSDictionary?
...
It is worth pointing out, that there is now a literal syntax for NSNumbers. @YES is the same as [NSNumber numberWithBool:YES]
– jcampbell1
Jan 4 '13 at 4:06
...
Install go with brew, and running the gotour
...efault: https://golang.org/doc/code.html#GOPATH
– Snowcrash
Jul 19 '18 at 7:17
4
This answer is...
How to Test Facebook Connect Locally
...
this used to work for me until recently but now i am receiving connection refused exception when trying to log in, probably due to a change on facebook side. any ideas of a work-around is much appreciated.
– onurmatik
Jul 13 '13 a...
Splitting a string into chunks of a certain size
...meone that just wants to look at a solution to this problem. A person must now understand what the Enumerable.Range() and .Select() functions do. I will not argue that you should have an understanding of that to write C#/.NET code as these functions have been in the BCL for many years now.
...
Making a Sass mixin with optional arguments
...-box-shadow: $args;
-moz-box-shadow: $args;
box-shadow: $args;
}
And now you can reuse your box-shadow in every class you want by passing all needed args:
.my-box-shadow {
@include box-shadow(2px 2px 5px #555, inset 0 0 0);
}
...
#ifdef replacement in the Swift language
.... Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
As usual, you can set a different val...