num(), first() and last() method’s; exists(), prev() and last() method’s; … . An associative array (formerly called PL/SQL table or index-by table) is a set of key-value pairs.Each key is a unique index, used to locate the associated value with the syntax variable_name (index).. document.writeln("fedex domain: " + myObject['fedex']);
delete myObject.fedex; The items can have different lengths. Code: Output: Instead of looping the associative array, we can also display the array elements using Object.keys(). And each element in the sub-array can be an array, and so on. document.write(''); Also, the user can add properties to an associative array object.