JS how to do "substr"?

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"
?>

Google still seems to work: http://www.google.ie/search?q=javascript+substring — Felix Kling, Feb 20 '12 at 19:29

score 7 · Accepted Answer · answered Feb 20 '12 at 19:29

7

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

answered Feb 20 '12 at 19:29

user1123379

334
3
5
13

2

Actually `substr` in both PHP and Javascript uses `length`, not `end` – Nicole Feb 20 '12 at 19:31

score 2 · Answer 2 · answered Feb 20 '12 at 19:26

2

The following will reproduce it.

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

answered Feb 20 '12 at 19:26

Martin.

10,494
3
42
68

1

I don't think IE supports negative starting positions with `.substr()`, though it does with `.slice()`... – nnnnnn Feb 20 '12 at 20:25

JS how to do "substr"?

2 Answers2