@stdlib/fs-read-wasm

<details> <summary> About stdlib... </summary> <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> <p>The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.</p> <p>When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.</p> <p>To join us in bringing numerical computing to the web, get started by checking us out on <a href="https://github.com/stdlib-js/stdlib">GitHub</a>, and please consider <a href="https://opencollective.com/stdlib">financially supporting stdlib</a>. We greatly appreciate your continued support!</p> </details> # Read WebAssembly [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]  > Read a file as [WebAssembly][webassembly]. <section class="installation"> ## Installation ```bash npm install @stdlib/fs-read-wasm ``` </section> <section class="usage"> ## Usage ```javascript var readWASM = require( '@stdlib/fs-read-wasm' ); ``` <a name="read-wasm"></a> #### readWASM( file\[, options], clbk ) Asynchronously reads a file as [WebAssembly][webassembly]. ```javascript var join = require( 'path' ).join; var fpath = join( __dirname, 'examples', 'fixtures', 'file.wasm' ); readWASM( fpath, onRead ); function onRead( error, buf ) { if ( error ) { throw error; } console.log( buf ); } ``` The function accepts the following `options`: - **flag**: file status flag. #### readWASM.sync( file\[, options] ) Synchronously reads a file as [WebAssembly][webassembly]. ```javascript var join = require( 'path' ).join; var instanceOf = require( '@stdlib/assert-instance-of' ); var fpath = join( __dirname, 'examples', 'fixtures', 'file.wasm' ); var out = readWASM.sync( fpath ); if ( instanceOf( out, Error ) ) { throw out; } console.log( out ); ``` The function accepts the same `options` as [`readWASM()`](#read-wasm) above. </section>  <section class="notes"> ## Notes - In contrast to [`readFile()`][@stdlib/fs/read-file], neither function accepts an `encoding` option. As [WebAssembly][webassembly] is a binary file format, if provided an `encoding` option, the function **overrides** the option, setting the option value to `null`. - Both functions return [WebAssembly][webassembly] file content as a [`Uint8Array`][@stdlib/array/uint8]. </section>  <section class="examples"> ## Examples   ```javascript var join = require( 'path' ).join; var hasWebAssemblySupport = require( '@stdlib/assert-has-wasm-support' ); var readWASM = require( '@stdlib/fs-read-wasm' ); var fpath = join( __dirname, 'examples', 'fixtures', 'file.wasm' ); readWASM( fpath, onRead ); function onRead( error, wasm ) { var bool; if ( error ) { throw error; } bool = hasWebAssemblySupport(); // If WebAssembly is supported, create a WebAssembly module instance... if ( bool ) { wasm = new WebAssembly.Module( wasm ); wasm = new WebAssembly.Instance( wasm, {} ); console.log( wasm.exports.stdlib_hypot( 5.0, 12.0 ) ); } else { console.log( wasm ); } } ``` </section>   <section class="related"> * * * ## See Also - <span class="package-name">[`@stdlib/fs-read-file`][@stdlib/fs/read-file]</span><span class="delimiter">: </span><span class="description">read the entire contents of a file.</span> </section>   <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 © 2016-2024. The Stdlib [Authors][stdlib-authors]. </section>   <section class="links"> [npm-image]: http://img.shields.io/npm/v/@stdlib/fs-read-wasm.svg [npm-url]: https://npmjs.org/package/@stdlib/fs-read-wasm [test-image]: https://github.com/stdlib-js/fs-read-wasm/actions/workflows/test.yml/badge.svg?branch=v0.2.2 [test-url]: https://github.com/stdlib-js/fs-read-wasm/actions/workflows/test.yml?query=branch:v0.2.2 [coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/fs-read-wasm/main.svg [coverage-url]: https://codecov.io/github/stdlib-js/fs-read-wasm?branch=main  [chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg [chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im [stdlib]: https://github.com/stdlib-js/stdlib [stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors [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/fs-read-wasm/tree/deno [deno-readme]: https://github.com/stdlib-js/fs-read-wasm/blob/deno/README.md [umd-url]: https://github.com/stdlib-js/fs-read-wasm/tree/umd [umd-readme]: https://github.com/stdlib-js/fs-read-wasm/blob/umd/README.md [esm-url]: https://github.com/stdlib-js/fs-read-wasm/tree/esm [esm-readme]: https://github.com/stdlib-js/fs-read-wasm/blob/esm/README.md [branches-url]: https://github.com/stdlib-js/fs-read-wasm/blob/main/branches.md [stdlib-license]: https://raw.githubusercontent.com/stdlib-js/fs-read-wasm/main/LICENSE [webassembly]: https://webassembly.org/ [@stdlib/fs/read-file]: https://www.npmjs.com/package/@stdlib/fs-read-file [@stdlib/array/uint8]: https://www.npmjs.com/package/@stdlib/array-uint8   </section>