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wxt/docs/guide/essentials/scripting.md
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# Scripting
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api/scripting) • [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/scripting)
Refer to the browser docs above for basics on how the API works.
## Execute Script Return Values
When using `browser.scripting.executeScript`, you can execute content scripts or unlisted scripts. To return a value, just return a value from the script's `main` function.
```ts
// entrypoints/background.ts
const res = await browser.scripting.executeScript({
target: { tabId },
files: ['content-scripts/example.js'],
});
console.log(res); // "Hello John!"
```
```ts
// entrypoints/example.content.ts
export default defineContentScript({
registration: 'runtime',
main(ctx) {
console.log('Script was executed!');
return 'Hello John!';
},
});
```