npm package: @stdlib/utils-try-require
Description: Wrap `require` in a try/catch block.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
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  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# tryRequire

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Wrap `require` in a try/catch block.

<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/utils-try-require
```

</section>

<section class="usage">

## Usage

```javascript
var tryRequire = require( '@stdlib/utils-try-require' );
```

#### tryRequire( id )

Wraps `require` in a `try/catch` block. If able to resolve a module `id`, the function returns the value bound to `module.exports` in the resolved module. Otherwise, the function returns an `Error`.

```javascript
var x = tryRequire( 'beep' );

if ( x instanceof Error ) {
    console.log( x.message );
}
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   Use caution when attempting to resolve a relative path or a local module. This function attempts to resolve a module from its current path. Thus, the function is **unable** to resolve anything which is not along its search path. For local requires, use an absolute file path.

    ```javascript
    var resolve = require( 'path' ).resolve;

    var out = tryRequire( resolve( '/foo/bar/baz', '..', 'lib', 'beep.js' ) );

    if ( out instanceof Error ) {
        console.error( out.message );
    }
    ```

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var tryRequire = require( '@stdlib/utils-try-require' );

var out = tryRequire( '_abcdefghijklmnopqrstuvwxyz123456789_' );
if ( out instanceof Error ) {
    console.error( out.message );
} else {
    throw new Error( 'expected an error' );
}

out = tryRequire( '@stdlib/utils-try-require' );
if ( out !== tryRequire ) {
    throw new Error( 'expected export' );
}
```

</section>

<!-- /.examples -->

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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[npm-image]: http://img.shields.io/npm/v/@stdlib/utils-try-require.svg
[npm-url]: https://npmjs.org/package/@stdlib/utils-try-require

[test-image]: https://github.com/stdlib-js/utils-try-require/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/utils-try-require/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/utils-try-require/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/utils-try-require?branch=main

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[stdlib]: https://github.com/stdlib-js/stdlib

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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/utils-try-require/tree/deno
[deno-readme]: https://github.com/stdlib-js/utils-try-require/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/utils-try-require/tree/umd
[umd-readme]: https://github.com/stdlib-js/utils-try-require/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/utils-try-require/tree/esm
[esm-readme]: https://github.com/stdlib-js/utils-try-require/blob/esm/README.md
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/utils-try-require/main/LICENSE

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