How to use String slice() to get substring in Javascript

Slice a string

slice(startingPosition [, whereToStop(exclusive)]) returns a substring and accepts either one or two arguments.

If the second argument is omitted, it is default to the ending position. slice() does not alter the value of the string itself.

Example

var stringValue = "hello world"; 
console.log(stringValue.slice(3)); //"lo world" 

The code above generates the following result.

Example 2

A negative argument tells to do the sub string from the end.

var stringValue = "hello world"; 
        //www  .j  a v a  2 s . c  o m
console.log(stringValue.slice(-3)); //"rld" 
console.log(stringValue.slice(3, -4)); //"lo w" 

The code above generates the following result.