# path-starts-with

> Returns true if a filepath starts with the given string. Works with windows and posix/unix paths.

Latest version **2.0.1** (published 2023-07-29) · MIT license · 35.9K weekly downloads

## Install

```sh
npm install path-starts-with
pnpm add path-starts-with
yarn add path-starts-with
bun add path-starts-with
```

## Health

**Score 25/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 2.0.1 |
| Published | 2023-07-29 |
| First published | 2017-04-17 |
| Weekly downloads | 35.9K |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Node | >=8 |
| Dependencies | 0 |
| Unpacked size | 9.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 6 |
| Author | Jon Schlinkert |
| Maintainers | jonschlinkert |
| Keywords | directory, file path, file, filepath, folder, fs, inside, path, posix, relative, slash, slashes, starts, startsWith, util, utility, utils, windows |

## Links

- npm: https://www.npmjs.com/package/path-starts-with
- Repository: https://github.com/jonschlinkert/path-starts-with
- Issues: https://github.com/jonschlinkert/path-starts-with/issues
- npm.io page: https://npm.io/package/path-starts-with

## Alternatives

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## Recent versions

- 2.0.1 (latest) — 2023-07-29
- 2.0.0 — 2019-04-29
- 1.0.0 — 2017-04-17

## README

# path-starts-with [![NPM version](https://img.shields.io/npm/v/path-starts-with.svg?style=flat)](https://www.npmjs.com/package/path-starts-with) [![NPM monthly downloads](https://img.shields.io/npm/dm/path-starts-with.svg?style=flat)](https://npmjs.org/package/path-starts-with) [![NPM total downloads](https://img.shields.io/npm/dt/path-starts-with.svg?style=flat)](https://npmjs.org/package/path-starts-with)

> Returns true if a filepath starts with the given string. Works with windows and posix/unix paths.

Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.

## Install

Install with [npm](https://www.npmjs.com/):

```sh
$ npm install --save path-starts-with
```

## Usage

```js
var startsWith = require('path-starts-with');

console.log(startsWith('foo/bar', 'foo')); //=> true
console.log(startsWith('foo/bar', 'bar')); //=> false
```

## Negation

Prefix the substring with `!` to return true when the path _does not_ start with the substring.

```js
console.log(startsWith('foo/bar', '!foo')); //=> false
console.log(startsWith('foo/bar', '!bar')); //=> true
```

## options

### options.nocase

**Type**: `boolean`

**Default**: `false`

Disable case sensitivity.

```js
startsWith('foo/bar', 'FOO');                 
//=> false
startsWith('foo/bar', 'FOO', {nocase: true}); 
//=> true
```

### options.partialMatch

**Type**: `boolean`

**Default**: `false`

Allow partial matches:

```js
startsWith('foobar', 'foo');  //=> false                 
startsWith('foo.bar', 'foo'); //=> false                 

startsWith('foobar', 'foo', {partialMatch: true});  //=> true 
startsWith('foo.bar', 'foo', {partialMatch: true}); //=> true 
```

## Comparison behavior

### Windows paths

Backslashes are converted to forward slashes before the comparison is done. Thus, both of the following would be `true`:

```js
console.log(startsWith('foo\\bar', 'foo/bar')); //=> true
console.log(startsWith('foo/bar', 'foo\\bar')); //=> true
```

### Leading dot-slash

Leading `./` is stripped from both the filepath and substring. Thus, both of the following would be `true`:

```js
console.log(startsWith('./foo/bar', 'foo')); //=> true
console.log(startsWith('foo/bar', './foo')); //=> true
```

### Leading slashes

When the substring is prefixed with leading slashes, _the number of leading slashes_ must match exactly.

```js
console.log(startsWith('/foo', '/foo'));      //=> true
console.log(startsWith('/foo/bar', '/foo'));  //=> true

console.log(startsWith('/foo/bar', '//foo')); //=> false
console.log(startsWith('//foo/bar', '/foo')); //=> false
```

## About

<details>
<summary><strong>Contributing</strong></summary>

Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).

Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.

</details>

<details>
<summary><strong>Running Tests</strong></summary>

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

```sh
$ npm install && npm test
```

</details>

<details>
<summary><strong>Building docs</strong></summary>

_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_

To generate the readme, run the following command:

```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```

</details>

### Related projects

You might also be interested in these projects:

* [contains-path](https://www.npmjs.com/package/contains-path): Return true if a file path contains the given path. | [homepage](https://github.com/jonschlinkert/contains-path "Return true if a file path contains the given path.")
* [normalize-path](https://www.npmjs.com/package/normalize-path): Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes… [more](https://github.com/jonschlinkert/normalize-path) | [homepage](https://github.com/jonschlinkert/normalize-path "Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.")
* [path-ends-with](https://www.npmjs.com/package/path-ends-with): Return `true` if a file path ends with the given string/suffix. | [homepage](https://github.com/jonschlinkert/path-ends-with "Return `true` if a file path ends with the given string/suffix.")

### Author

**Jon Schlinkert**

* [GitHub Profile](https://github.com/jonschlinkert)
* [Twitter Profile](https://twitter.com/jonschlinkert)
* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)

### License

Copyright © 2023, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).

***

_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on July 29, 2023._

---
_Source: https://npm.io/package/path-starts-with · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._
