sarfraznawaz2005

<?php
   /**

    * This function can be used to check the sanity of variables
    *
    * @access private
    *
    * @param string $type  The type of variable can be bool, float, numeric, string, array, or object
    * @param string $string The variable name you would like to check
    * @param string $length The maximum length of the variable

sarfraznawaz2005

<?php
foreach(get_class_methods(new ArrayObject()) as $key=>$method)
{
echo $key.' -> '.$method.'<br />';
}

sarfraznawaz2005

// simple way to avoid running code again when user click a button or trigger event in some other way

var shutdown = function() {
    shutdown = function() {
        alert("don't worry - we're already processing your shutdown request");
    }
    
    alert('This runs first!');

}

sarfraznawaz2005

var getMyText = function(myDiv) {
    getMyText =
        myDiv.innerText !== undefined ? // innerText not supported in FF
            function(myDiv) {return myDiv.innerText} :
            function(myDiv) {return myDiv.textContent};

    return getMyText(myDiv);
}

sarfraznawaz2005

function Foo(n) {
   this.Name = n; 
}
 
$.extend( Foo.prototype, new jQuery.Interface, { // more prototype methods } );

// Foo preserves .constructor

sarfraznawaz2005

$.extend($.expr[':'],{
    inline: function(a) {
        return $(a).css('display') === 'inline';
    }
});

// $(':inline'); // Selects ALL inline elements

sarfraznawaz2005

// Allows you to pass a function to jQuery's 'css' method
// This means you can use the -this- keyword to reference
// the current element!!!
(function($){
    $.fn.oldCSSMethod = $.fn.css;
    $.fn.css = function(o) {
        return $.isFunction(o) ? 
            $(this).each(function(){
                $(this).oldCSSMethod(o.call(this));
            })

sarfraznawaz2005

/*

Defination:

Inner functions referring to local variables of its outer function create closures

OR

Declaring a function within another function, and that inner function has access to its parent function's variables, even after that parent function has returned.

sarfraznawaz2005

// simple way to convert an object to an array with all butter of array using Array.slice
function foo(a, b, c){
  var argsArray = [].slice.apply(arguments);

  argsArray.push(4,5);
  alert(argsArray[4]); //5
}

foo(1, 2, 3);

sarfraznawaz2005

function format(string) {  
    var args = arguments;  
    var pattern = RegExp("%([1-" + (arguments.length-1) + "])", "g");
    return string.replace(pattern, function(match, index) {  
        return args[index];  
    });  
}; 

format("a %1 and a %2", "cat", "dog");
//"a cat and a dog"