You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
822 B
57 lines
822 B
3 years ago
|
# read-chunk [](https://travis-ci.org/sindresorhus/read-chunk)
|
||
|
|
|
||
|
|
> Read a chunk from a file
|
||
|
|
|
||
|
|
Because the built-in way requires way too much boilerplate.
|
||
|
|
|
||
|
|
|
||
|
|
## Install
|
||
|
|
|
||
|
|
```
|
||
|
|
$ npm install read-chunk
|
||
|
|
```
|
||
|
|
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
const readChunk = require('read-chunk');
|
||
|
|
|
||
|
|
// foo.txt => hello
|
||
|
|
|
||
|
|
readChunk.sync('foo.txt', 1, 3);
|
||
|
|
//=> 'ell'
|
||
|
|
```
|
||
|
|
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
### readChunk(filePath, startPosition, length)
|
||
|
|
|
||
|
|
Returns a `Promise<Buffer>` with the read chunk.
|
||
|
|
|
||
|
|
### readChunk.sync(filePath, startPosition, length)
|
||
|
|
|
||
|
|
Returns a `Buffer` with the read chunk.
|
||
|
|
|
||
|
|
#### filePath
|
||
|
|
|
||
|
|
Type: `string`
|
||
|
|
|
||
|
|
#### startPosition
|
||
|
|
|
||
|
|
Type: `number`
|
||
|
|
|
||
|
|
Position to start reading.
|
||
|
|
|
||
|
|
#### length
|
||
|
|
|
||
|
|
Type: `number`
|
||
|
|
|
||
|
|
Number of bytes to read.
|
||
|
|
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
MIT © [Sindre Sorhus](https://sindresorhus.com)
|