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# Read File List

> Read the entire contents of each file in a file list.

<section class="usage">

## Usage

```javascript
var readFileList = require( '@stdlib/fs/read-file-list' );
```

#### readFileList( filepaths\[, options], clbk )

Asynchronously reads the entire contents of each file in a file list.

```javascript
readFileList( [ __filename ], onFiles );

function onFiles( error, files ) {
    if ( error ) {
        throw error;
    }
    console.dir( files );
    // => [{...}]
}
```

Each file is represented by an `object` with the following fields:

-   **file**: file path.
-   **data**: file contents as either a [`Buffer`][node-buffer] or `string`.

The function accepts the same options as [`readFile()`][@stdlib/fs/read-file].

#### readFileList.sync( filepaths\[, options] )

Synchronously reads the entire contents of each file in a file list.

```javascript
var out = readFileList.sync( [ __filename ] );
if ( out instanceof Error ) {
    throw out;
}
console.dir( out );
// => [{...}]
```

The function accepts the same options as [`readFile.sync()`][@stdlib/fs/read-file].

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var readFileList = require( '@stdlib/fs/read-file-list' );

/* Sync */

var files = readFileList.sync( [ __filename ], 'utf8' );
// returns <ObjectArray>

console.log( files instanceof Error );
// => false

files = readFileList.sync( [ 'beepboop' ], {
    'encoding': 'utf8'
});
// returns <Error>

console.log( files instanceof Error );
// => true

/* Async */

readFileList( [ __filename ], onFiles );
readFileList( [ 'beepboop' ], onFiles );

function onFiles( error, files ) {
    if ( error ) {
        if ( error.code === 'ENOENT' ) {
            console.error( 'A file does not exist.' );
        } else {
            throw error;
        }
    } else {
        console.dir( files );
    }
}
```

</section>

<!-- /.examples -->

* * *

<section class="cli">

## CLI

<section class="usage">

### Usage

```text
Usage: read-file-list [options] <filepath1> <filepath2> ...

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
  --enc, --encoding encoding   Encoding.
         --flag flag           Flag. Default: 'r'.
```

</section>

<!-- /.usage -->

<section class="notes">

### Notes

-   Relative file paths are resolved relative to the current working directory.
-   Errors are written to `stderr`.
-   File contents are written to `stdout` as newline-delimited JSON ([NDJSON][ndjson]).

</section>

<!-- /.notes -->

<section class="examples">

### Examples

```bash
$ read-file-list ./README.md ./package.json
{"file":"...","data":"..."}
{"file":"...","data":"..."}
```

</section>

<!-- /.examples -->

</section>

<!-- /.cli -->

<section class="links">

[@stdlib/fs/read-file]: https://www.npmjs.com/package/@stdlib/fs/tree/main/read-file

[node-buffer]: https://nodejs.org/api/buffer.html

[ndjson]: http://ndjson.org/

</section>

<!-- /.links -->