String.prototype.lastIndexOf

An ES-spec-compliant String.prototype.lastIndexOfshim/polyfill/replacement that works as far down as ES3.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Getting started

npm install --save string.prototype.lastindexof

Usage/Examples

var assert = require('assert');

assert('abcabc'.lastIndexOf('abc') === 3);
assert('abcabc'.lastIndexOf('abc', 0) === 0);
assert('abcabc'.lastIndexOf('abc', 1) === 0);
assert('abcabc'.lastIndexOf('abc', 2) === 0);
assert('abcabc'.lastIndexOf('abc', 3) === 3);
assert('abcabc'.lastIndexOf('abc', 4) === 3);
assert('abcabc'.lastIndexOf('abc', 5) === 3);
assert('abcabc'.lastIndexOf('abc', 6) === 3);

assert('abc'.lastIndexOf('x') === -1);

Tests

Clone the repo, npm install, and run npm test