Operators

Basic Operators

Basic operators allow you to manipulate values.

Example 2.5: Concatenation
var foo = ‘hello’;
var bar = ‘world’;

console.log(foo + ‘ ‘ + bar); // ‘hello world’

Example 2.6: Multiplication and division
2 * 3;
2 / 3;

Example 2.7: Incrementing and decrementing
var i = 1;

var j = ++i; // pre-increment: j equals 2; i equals 2
var k = i++; // post-increment: k equals 2; i equals 3

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