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Check if a JavaScript string is a URL
Is there a way in JavaScript to check if a string is a URL?
32 Answers
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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
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Reference: mod_rewrite, URL rewriting and “pretty links” explained
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Introducing shortcuts like http://example.com/article/531 to existing PHP scripts is also easy. The numeric placeholder can just be remapped to a $_GET parameter:
RewriteRule ^article/(\d+)$ article-show.php?id=$1
# └─────────────────...
JS - get image width and height from the base64 code
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var i = new Image();
i.onload = function(){
alert( i.width+", "+i.height );
};
i.src = imageData;
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jQuery: outer html() [duplicate]
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No siblings solution:
var x = $('#xxx').parent().html();
alert(x);
Universal solution:
// no cloning necessary
var x = $('#xxx').wrapAll('<div>').parent().html();
alert(x);
Fiddle here: http://jsfiddle.net/ezmilhouse/Mv76a/
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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.
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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...
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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The definitive guide to form-based website authentication [closed]
...y know how to build a login+password HTML form which POSTs the values to a script on the server side for authentication. The sections below will deal with patterns for sound practical auth, and how to avoid the most common security pitfalls.
To HTTPS or not to HTTPS?
Unless the connection is already...
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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