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How to check for an active Internet connection on iOS or macOS?
... print("Reachable via Cellular")
}
}
reachability.whenUnreachable = { _ in
print("Not reachable")
}
do {
try reachability.startNotifier()
} catch {
print("Unable to start notifier")
}
Objective-C
1) Add SystemConfiguration framework to the project but don't worry about includi...
image.onload event and browser cache
...ownloading it again, like this:
var img = new Image();
img.src = "img.jpg?_="+(new Date().getTime());
img.onload = function () {
alert("image is loaded");
}
In this code every time adding current timestamp to the end of the image URL you make it unique and browser will download the image aga...
How to detect the swipe left or Right in Android?
... class add following attributes:
private float x1,x2;
static final int MIN_DISTANCE = 150;
and override onTouchEvent() method:
@Override
public boolean onTouchEvent(MotionEvent event)
{
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
x1 = event.getX(); ...
Resizing UITableView to fit content
...code modifies the UI, do not forget to run it in the main thread:
dispatch_async(dispatch_get_main_queue(), ^{
//This code will run in the main thread:
CGRect frame = self.tableView.frame;
frame.size.height = self.tableView.contentSize.height;
self.tableView.frame = ...
Print function log /stack trace for entire program using firebug
... Chrome and IE 11.
Alternatively try something like this:
function print_call_stack() {
var stack = new Error().stack;
console.log("PRINTING CALL STACK");
console.log( stack );
}
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i...
Easiest way to check for an index or a key in an array?
...
I solved in this way: if test "${myArray['key_or_index']+isset}"; then echo "yes"; else echo "no"; fi; It seems to me the simplest way and it applies to indexed and associative arrays. Thank you
– Luca Borrione
Nov 4 '12 at 19:13
...
Is an index needed for a primary key in SQLite?
...
It's mention in the sqlite_master table with a name starting with sqlite_autoindex_.
– dan04
Jul 31 '10 at 19:17
2
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Is it possible to make an ASP.NET MVC route based on a subdomain?
...nd using attributes would make this easier.
– perfect_element
Jan 27 '17 at 4:42
@perfect_element - Attribute routes a...
How to create a function in a cshtml template?
...e template files by putting the file with the @helper directive into an App_Code directory. Whereas, the @functions directive allows a function to be used only by the template that declares it.
– Jon Davis
Jul 4 '11 at 21:24
...
How do I clear/delete the current line in terminal?
... Cut word before the cursor
Ctrl+y Paste the last deleted command
Ctrl+_ Undo
Ctrl+u Cut everything before the cursor
Ctrl+xx Toggle between first and current position
Ctrl+l Clear the terminal
Ctrl+c Cancel the command
Ctrl+r Search command in history - type the search term
Ctrl+j End...