49 lines
2.3 KiB
Plaintext
49 lines
2.3 KiB
Plaintext
# String.prototype.trim <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
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[![github actions][actions-image]][actions-url]
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[![coverage][codecov-image]][codecov-url]
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[![dependency status][deps-svg]][deps-url]
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[![dev dependency status][dev-deps-svg]][dev-deps-url]
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[![License][license-image]][license-url]
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[![Downloads][downloads-image]][downloads-url]
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[![npm badge][npm-badge-png]][package-url]
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An ES5 spec-compliant `String.prototype.trim` shim. Invoke its "shim" method to shim `String.prototype.trim` if it is unavailable.
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This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the spec (both [ES5](https://262.ecma-international.org/5.1/#sec-15.5.4.20) and [current](https://tc39.es/ecma262/#sec-string.prototype.trim)).
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Most common usage:
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```js
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var assert = require('assert');
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var trim = require('string.prototype.trim');
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assert(trim(' \t\na \t\n') === 'a');
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trim.shim(); // will be a no-op if not needed
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assert(trim(' \t\na \t\n') === ' \t\na \t\n'.trim());
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```
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## Engine Bugs
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Some implementations of `String#trim` incorrectly trim zero-width spaces. This shim detects and corrects this behavior.
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## Tests
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Simply clone the repo, `npm install`, and run `npm test`
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[package-url]: https://npmjs.com/package/string.prototype.trim
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[npm-version-svg]: https://versionbadg.es/es-shims/String.prototype.trim.svg
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[deps-svg]: https://david-dm.org/es-shims/String.prototype.trim.svg
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[deps-url]: https://david-dm.org/es-shims/String.prototype.trim
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[dev-deps-svg]: https://david-dm.org/es-shims/String.prototype.trim/dev-status.svg
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[dev-deps-url]: https://david-dm.org/es-shims/String.prototype.trim#info=devDependencies
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[license-image]: https://img.shields.io/npm/l/string.prototype.trim.svg
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[license-url]: LICENSE
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[downloads-image]: https://img.shields.io/npm/dm/string.prototype.trim.svg
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[downloads-url]: https://npm-stat.com/charts.html?package=string.prototype.trim
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[codecov-image]: https://codecov.io/gh/es-shims/String.prototype.trim/branch/main/graphs/badge.svg
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[codecov-url]: https://app.codecov.io/gh/es-shims/String.prototype.trim/
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[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/String.prototype.trim
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[actions-url]: https://github.com/es-shims/String.prototype.trim/actions
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