JS how to do "substr"? [duplicate]

Question

Possible Duplicate:
javascript substring

How can I do substr (php) in JS?

Example code from PHP:

<?php
$rest = substr("abcdef", -1);    // returns "f"
$rest = substr("abcdef", -2);    // returns "ef"
$rest = substr("abcdef", -3, 1); // returns "d"
?>

Answer 1

It is very similar to PHP:

var rest = "abcdef".substr(start, length);

You also can read more about this function here: http://www.w3schools.com/jsref/jsref_substr.asp

Answer 2

The following will reproduce it.

"abcdef".substr(-1);
"abcdef".substr(-2);
"abcdef".substr(-3, 1);