Schogini

var test_array = new Array(’jack’, ’joey’, ’phillip’, ’peter’, ’jane’);

var assoc_array = new Array();
assoc_array[’sarah’] = 25;

assoc_array[’samantha’] = 22;
assoc_array[’joseph’] = 26;
assoc_array[’jack’] = 28;

assoc_array[’joey’] = 27;
assoc_array[’peter’] = 25;
// Example 1: value found

if( in_array(’jack’, test_array) )
{
	alert(’Aha…found you jack!’);
}
// Example 2: value not found

if( !in_array(’jasmine’, test_array) )
{
	alert(’Where are you dear jasmine?’);
}
// Example 3: search by array key

if( in_array(’sarah’, assoc_array, ’key’) )
{
	alert(assoc_array[’sarah’]);
}

Code: /**
* Simulate PHP in_array() function.
* This will NOT recursively search the array depth.
*
* @param needle what to search for
* @param haystack the array in which to search for a value matching needle.
* This is assumed to be non-associative
* @param assoc options: key/value.
* key = search for needle in the keys of the associative array.
* value = search for the needle in the values
* If any other string is passed it will default to value.
* @return bool
*/
function in_array(needle, haystack, assoc)
{
	if( !assoc || assoc == ’’ )
	{
		for( var i=0; i<haystack.length; i++ )
		{
			if( haystack[i] == needle )
			{
				return true;
			}
		}
	}
	else

	{
		if( assoc == ’key’ )
		{
			for( var key in haystack)
			{
				if( key == needle )
				{
					return true;
				}
			}
		}
		else
		{
			for( var key in haystack )
			{
				if( haystack[key] == needle )
				{
					return true;
				}
			}
		}
	}
	return false;
}