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/Sass

render

render(options: LegacyOptions<"async">, callback: ((exception?: LegacyException, result?: LegacyResult) => void)): void
This function asynchronously compiles a Sass file to CSS, and calls callback with a LegacyResult if compilation succeeds or LegacyException if it fails.

When using the sass npm package, renderSync is almost twice as fast as render by default, due to the overhead of making the entire evaluation process asynchronous.
```
constsass = require('sass'); // or require('node-sass');

sass.render({
file:"style.scss"
}, function(err, result) {
// ...
});
```
Deprecated

Use compileAsync or compileStringAsync instead.
Parameters
- options: LegacyOptions<"async">
- callback: ((exception?: LegacyException, result?: LegacyResult) => void)
  - - (exception?: LegacyException, result?: LegacyResult): void
    - Parameters
      
      Optional exception: LegacyException
      
      Optional result: LegacyResult
      
      Returns void
Returns void
- Defined in js-api-doc/legacy/render.d.ts:141

© 2006–2025 the Sass team, and numerous contributors
Licensed under the MIT License.
https://sass-lang.com/documentation/js-api/functions/render