Jquery Array

Jquery Array
// Creating an array with the constructor:
var foo = new Array;
// Creating an array with the array literal syntax:
var bar = [];
// The array literal returns a foo.length value of 1:
var foo = [ 100 ];
alert( foo[ 0 ] ); // 100
alert( foo.length ); // 1
// The array constructor returns a bar.length value of 100:
var bar = new Array( 100 );
alert( bar[ 0 ] ); // undefined
alert( bar.length ); // 100
// Using the push(), pop(), unshift() and shift() methods on an array.
var foo = [];
foo.push( "a" );
foo.push( "b" );
alert( foo[ 0 ] ); // a
alert( foo[ 1 ] ); // b
alert( foo.length ); // 2
foo.pop();
alert( foo[ 0 ] ); // a
alert( foo[ 1 ] ); // undefined
alert( foo.length ); // 1
foo.unshift( "z" );
alert( foo[ 0 ] ); // z
alert( foo[ 1 ] ); // a
alert( foo.length ); // 2
foo.shift();
alert( foo[ 0 ] ); // a
alert( foo[ 1 ] ); // undefined
alert( foo.length ); // 1