README

String.prototype.trimStart

[][license-url]

An ES2019-spec-compliant `String.prototype.trimStart` shim. Invoke its "shim" method to shim `String.prototype.trimStart` if it is unavailable.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec. In an ES6 environment, it will also work properly with `Symbol`s.

Most common usage:

var trimStart = require('string.prototype.trimstart');
assert(trimStart(' \t\na \t\n') === 'a \t\n');
if (!String.prototype.trimStart) {
trimStart.shim();
}
assert(trimStart(' \t\na \t\n') === ' \t\na \t\n'.trimStart());

## Tests

Simply clone the repo, `npm install`, and run `npm test`