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@astrojs/compiler
Advanced tools
@astrojs/compiler is a package designed to compile Astro components into static HTML and JavaScript. It is part of the Astro framework, which is focused on building fast, content-focused websites. The compiler transforms Astro component files (.astro) into optimized static assets.
Compile Astro Components
This feature allows you to compile Astro component code into static HTML and JavaScript. The `compile` function takes Astro code as input and returns a promise that resolves to the compiled result.
const { compile } = require('@astrojs/compiler');
const astroCode = `<div>Hello, World!</div>`;
compile(astroCode).then(result => {
console.log(result);
});
Transform Astro Files
The `transform` function is used to transform Astro files into a format that can be further processed or optimized. It takes the content of an Astro file and returns a promise that resolves to the transformed result.
const { transform } = require('@astrojs/compiler');
const astroFileContent = `<div>Hello, World!</div>`;
transform(astroFileContent).then(result => {
console.log(result);
});
Optimize Output
This feature allows you to optimize the output of the compiled Astro components. By passing an options object with `optimize: true`, the compiler will produce optimized static assets.
const { compile } = require('@astrojs/compiler');
const astroCode = `<div>Hello, World!</div>`;
compile(astroCode, { optimize: true }).then(result => {
console.log(result);
});
Svelte is a compiler that converts Svelte components into highly optimized JavaScript at build time. Unlike Astro, which focuses on static site generation, Svelte is more geared towards building reactive user interfaces.
Vue Template Compiler is used to compile Vue.js templates into render functions. It is similar to @astrojs/compiler in that it transforms component code into optimized output, but it is specific to the Vue.js framework.
Babel is a JavaScript compiler that transforms modern JavaScript code into a backward-compatible version. While it is not specific to any framework, it provides similar functionality in terms of code transformation and optimization.
Astro’s Go + WASM compiler.
npm install @astrojs/compiler
.astro
to valid TypeScriptThe Astro compiler can convert .astro
syntax to a TypeScript Module whose default export generates HTML.
Some notes...
.astro
syntax! The output code may need an additional post-processing step to generate valid JavaScript..astro
files rely on a server implementation exposed as astro/runtime/server/index.js
in the Node ecosystem. Other runtimes currently need to bring their own rendering implementation and reference it via internalURL
. This is a pain point we're looking into fixing.import { transform } from '@astrojs/compiler';
const result = await transform(source, {
filename: '/Users/astro/Code/project/src/pages/index.astro',
sourcemap: 'both',
internalURL: 'astro/runtime/server/index.js',
});
.astro
and return an ASTThe Astro compiler can emit an AST using the parse
method.
Some notes...
TextNode
can represent both HTML text
and JavaScript/TypeScript source code.@astrojs/compiler/utils
entrypoint exposes a walk
function that can be used to traverse the AST. It also exposes the is
helper which can be used as guards to derive the proper types for each node
.import { parse } from '@astrojs/compiler';
import { walk, is } from '@astrojs/compiler/utils';
const result = await parse(source, {
position: false, // defaults to `true`
});
walk(result.ast, (node) => {
// `tag` nodes are `element` | `custom-element` | `component`
if (is.tag(node)) {
console.log(node.name);
}
});
A devcontainer
configuration is available for use with VSCode's Remote Development extension pack and GitHub CodeSpaces.
FAQs
Astro’s [Go](https://golang.org/) + WASM compiler.
The npm package @astrojs/compiler receives a total of 325,026 weekly downloads. As such, @astrojs/compiler popularity was classified as popular.
We found that @astrojs/compiler demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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