forked from zhurui/management
46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
|
# path-exists [![Build Status](https://travis-ci.org/sindresorhus/path-exists.svg?branch=master)](https://travis-ci.org/sindresorhus/path-exists)
|
||
|
|
||
|
> Check if a path exists
|
||
|
|
||
|
Because [`fs.exists()`](https://nodejs.org/api/fs.html#fs_fs_exists_path_callback) is being [deprecated](https://github.com/iojs/io.js/issues/103), but there's still a genuine use-case of being able to check if a path exists for other purposes than doing IO with it.
|
||
|
|
||
|
Never use this before handling a file though:
|
||
|
|
||
|
> In particular, checking if a file exists before opening it is an anti-pattern that leaves you vulnerable to race conditions: another process may remove the file between the calls to `fs.exists()` and `fs.open()`. Just open the file and handle the error when it's not there.
|
||
|
|
||
|
|
||
|
## Install
|
||
|
|
||
|
```
|
||
|
$ npm install --save path-exists
|
||
|
```
|
||
|
|
||
|
|
||
|
## Usage
|
||
|
|
||
|
```js
|
||
|
// foo.js
|
||
|
var pathExists = require('path-exists');
|
||
|
|
||
|
pathExists('foo.js').then(function (exists) {
|
||
|
console.log(exists);
|
||
|
//=> true
|
||
|
});
|
||
|
```
|
||
|
|
||
|
|
||
|
## API
|
||
|
|
||
|
### pathExists(path)
|
||
|
|
||
|
Returns a promise that resolves to a boolean of whether the path exists.
|
||
|
|
||
|
### pathExists.sync(path)
|
||
|
|
||
|
Returns a boolean of whether the path exists.
|
||
|
|
||
|
|
||
|
## License
|
||
|
|
||
|
MIT © [Sindre Sorhus](http://sindresorhus.com)
|