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How can I use Timer (formerly NSTimer) in Swift?
...() {
super.viewDidLoad()
// Swift block syntax (iOS 10+)
let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") }
// Swift >=3 selector syntax
let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, ...
Add swipe to delete UITableViewCell
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Novice iOS programmer here - is there a good way to learn what methods need to be implemented for handling (seemingly) basic functionality like this? The documentation seems a bit verbose and hard to follow for my newbishnes.
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
The NSObject method performSelector:withObject:afterDelay: allows me to invoke a method on the object with an object argument after a certain time. It cannot be used for methods with a non-object argument (e.g. ints, floats, structs, non-object pointers, etc.).
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Javascript add leading zeroes to date
...ked - date format YYYY-MM-DD jsfiddle.net/j6qJp/1 It may be useful for somebody. Thanks
– tomexx
Oct 31 '12 at 13:59
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How to distinguish mouse “click” and “drag”
I use jQuery.click to handle the mouse click event on Raphael graph, meanwhile, I need to handle mouse drag event, mouse drag consists of mousedown , mouseup and mousemove in Raphael.
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Downloading images with node.js [closed]
...s'),
request = require('request');
var download = function(uri, filename, callback){
request.head(uri, function(err, res, body){
console.log('content-type:', res.headers['content-type']);
console.log('content-length:', res.headers['content-length']);
request(uri).pipe(fs.createWr...
How to check if a file exists in the Documents directory in Swift?
How to check if a file exists in the Documents directory in Swift ?
12 Answers
12
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PHP PDO: charset, set names?
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You'll have it in your connection string like:
"mysql:host=$host;dbname=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PDO("mysql:$connstr", $user, $password);
$dbh->exec("set...
Prevent browser from loading a drag-and-dropped file
...lers are needed to prevent the browser from loading the dropped file. (Chrome latest 2015/08/03). The solution works on FF latest, too.
– Offirmo
Aug 3 '15 at 12:23
5
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Get data from fs.readFile
... file loading has completed. When you call readFile, control is returned immediately and the next line of code is executed. So when you call console.log, your callback has not yet been invoked, and this content has not yet been set. Welcome to asynchronous programming.
Example approaches
const fs...