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UIGestureRecognizer on UIImageView
...handleTap(sender: UITapGestureRecognizer? = nil) {
// just creating an alert to prove our tap worked!
let tapAlert = UIAlertController(title: "hmmm...", message: "this actually worked?", preferredStyle: UIAlertControllerStyle.Alert)
tapAlert.addAction(UIAlertAction(title: "OK", style: .D...
Check if a JavaScript string is a URL
Is there a way in JavaScript to check if a string is a URL?
32 Answers
32
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How to check if anonymous object has a method?
...w if the function is defined.
if(typeof myObj.prop2 === 'function') {
alert("It's a function");
} else if (typeof myObj.prop2 === 'undefined') {
alert("It's undefined");
} else {
alert("It's neither undefined nor a function. It's a " + typeof myObj.prop2);
}
...
Compare two dates with JavaScript
...the result.
var oDateOne = new Date();
var oDateTwo = new Date();
alert(oDateOne - oDateTwo === 0);
alert(oDateOne - oDateTwo < 0);
alert(oDateOne - oDateTwo > 0);
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How do I make class methods / properties in Swift?
... { // computed type property
return 42
}
class func alert() { // type method
print("There are \(all.count) foos")
}
}
Foo.alert() // There are 0 foos
let f = Foo()
Foo.all.append(f)
Foo.alert() // There are 1 foos
...
JS - get image width and height from the base64 code
...
var i = new Image();
i.onload = function(){
alert( i.width+", "+i.height );
};
i.src = imageData;
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How to unsubscribe to a broadcast event in angularJS. How to remove function registered via $on
... one would normally do add/remove event listeners in a language like ActionScript or the Observable pattern in Java
– dannrob
Mar 7 '14 at 13:31
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Javascript checkbox onChange
...ventListener('change', (event) => {
if (event.target.checked) {
alert('checked');
} else {
alert('not checked');
}
})
My Checkbox: <input id="myCheckbox" type="checkbox" />
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Is jQuery “each()” function synchronous?
...is breaks the .each iterations, returning early
}
});
if(!all_ok){
alert('something went wrong');
}
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How to change the href for a hyperlink using jQuery
...;
$('.menu_link').live('click', function() {
var thelink = $(this);
alert ( thelink.html() );
alert ( thelink.attr('href') );
alert ( thelink.attr('rel') );
return false;
});