Arrays and Objects

JavaScript

Construct and initialize

var primes = new Array();
var primes = [2,3,5,7,11];

var hash = new Object();
var hash = {};
hash['david'] = '13-aug';

var hash = {david: '13-aug', leta: '31-dec'};
alert(hash['david']); alert(hash.leta);

Count values

primes.length

Iterate over the properties of a hash/object

for (var prop in obj) {
    alert('property name: ' + prop + '; property value: ' + obj[prop]);
}

Java

See http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.html

Strings and RegExes

JavaScript

Java

SQL Server T-SQL

Oracle PL/SQL

Dates

JavaScript

Java

SQL Server T-SQL

Oracle PL/SQL

Numbers

JavaScript

Java

SQL Server T-SQL

Oracle PL/SQL