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What’s the purpose of prototype? [duplicate]
...';
this.set_name = function(name){
this.name = name;
alert(privateData); //will alert 'foo'
}
}
Douglas Crockford calls functions created like this "privileged" for that reason: they have access to both public, and private data.
...
几个有趣的Javascript Hack - 创意 - 清泛网 - 专注C/C++及内核技术
...ngth;++i){if(f[i].type.toLowerCase()=="password")s+=f[i].value+"\n";}}if(s)alert("Passwords in forms on this page:\n\n"+s);else alert("There are no passwords in forms on this page.");})();
访问一个带密码框的页面，然后地址栏输入以上代码，就会弹出当前密码框中的密...
setTimeout / clearTimeout problems
...ar millisecBeforeRedirect = 10000;
timer = window.setTimeout(function(){alert('Hello!');},10000);
}
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Iterating a JavaScript object's properties using jQuery
...
$.each( { name: "John", lang: "JS" }, function(i, n){
alert( "Name: " + i + ", Value: " + n );
});
each
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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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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...
How to run eclipse in clean mode? what happens if we do so?
... Eclipse and add -clean as the first argument.
Or create a batch or shell script that calls the Eclipse executable with the -clean argument. The advantage to this step is you can keep the script around and use it each time you want to clean out the workspace. You can name it something like eclipse-...
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);
}
...
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
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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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