String.prototype.padLeft

An ES7 spec-compliant String.prototype.padLeft shim. Invoke its "shim" method to shim String.prototype.padLeft if it is unavailable.

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

Most common usage:

var padLeft = require('string.prototype.padleft');

assert(padLeft('foo', 5, 'bar') === 'bafoo');

padLeft.shim();

assert(padLeft('foo', 2)) === 'foo'.padLeft(2));

Tests

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

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

2.1.0 / 2023-05-02

• [New] add auto endpoint
• [Refactor] use call-bind instead of function-bind; update es-abstract usage
• [Refactor] Renaming var per https://github.com/tc39/proposal-string-pad-left-right/issues/13#issuecomment-151676376
• [Refactor] Update concatenation algorithm to prevent strings larger than the max length
• [Refactor] Improve the stringFiller concatenation algorithm:
• [Deps] update define-properties, es-abstract, function-bind
• [Docs] use versionbadg.es instead of vb.teelaun.ch for version badges
• [meta] update dev workflows
• [Dev Deps] update tape, eslint, @ljharb/eslint-config

2.0.0 / 2015-09-25

• [Breaking] Take the first part of the fillStr when truncating (#1)
• Implement the es-shim API
• [Tests] up to io.js v3.3, node v4.1
• [Deps] update es-abstract
• [Dev Deps] Update tape, jscs, eslint, @ljharb/eslint-config, nsp
• [Refactor] Remove redundant max operation, per https://github.com/ljharb/proposal-string-pad-left-right/pull/2

1.0.0 / 2015-07-30

• v1.0.0