JS-ARRAY-EXAMPLES

The following contains some sample usage of arrays:

var ar = new Array( 'cat', 'dog', 'horse' );
ar.slice( 1 ); // returns new [ 'dog', 'horse' ] array
ar.push( 'fish' ); // ar is now [ 'cat', 'dog', 'horse', 'fish' ]
ar.shift(); // returns 'cat', ar is now [ 'dog', 'horse', 'fish' ]
ar.unshift( 'mouse' ); // ar is now [ 'mouse', 'dog', 'horse', 'fish' ]
ar.pop(); // returns 'fish', ar is now [ 'mouse', 'dog', 'horse' ]
ar.sort(); // ar is now [ 'dog', 'horse', 'mouse' ]
ar.reverse(); // ar is now [ 'mouse', 'horse', 'dog' ]
ar[4] = 'boat'; // ar is now [ 'mouse', 'horse', null, null, 'boat' ]
delete ar[0]; // ar is now [ null, 'horse', null, null, 'boat' ]
ar.compact(); // ar is now [ 'horse', 'boat' ]
ar.has( 'horse' ); // returns true
ar.has( 'all', 'horse', 'bee' ); // returns false
ar.has( 'any', 'dog', 'bee', 'boat' ); // returns true
ar.union( 'bee', 'horse' ); // ar is now [ 'horse', 'boat', 'bee' ]
ar.subtract( 'boat', 'horse' ); // ar is now [ 'bee' ]
ar.shift( 'dog' ); // ar is now [ 'dog', 'bee' ]
ar.push( 'dog', 'bee' ); // ar is now [ 'dog', 'bee', 'dog', 'bee' ]
ar.unique(); // ar is now [ 'dog', 'bee' ];
ar.random(); // returns either 'dog' or 'bee' randomly
ar.length = 1; // ar is [ 'dog' ];
ar.length = 0; // ar is now empty