Files
YouTube.js/docs/api/namespaces/Utils/functions/getStringBetweenStrings.md
Luan 25d0876b91 refactor(Player)!: Use AST-based JS extraction with side-effect safe code emission (#1052)
* chore(deps): Add `meriyah`

* feat(utils): Implement AST-based JS extractors

* chore(utils): Remove old ast walker code

* fix(Player): Migrate js extraction logic

* chore(JsExtractor): Fix typo in tsdoc

* perf(JsAnalyzer): Simplify main AST analysis logic

* fix(JsAnalyzer): Change `break` to `return` in AST matching logic

* chore: Update docs

* chore: Don't export `PlayerInitializationOptions`

* chore(evaluate): Update error message to include doc link

* perf: Use a `for-loop` to find iife
2025-10-12 09:08:51 -03:00

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[youtubei.js](../../../README.md) / [Utils](../README.md) / getStringBetweenStrings
# Function: getStringBetweenStrings()
> **getStringBetweenStrings**(`data`, `start_string`, `end_string`): `string` \| `undefined`
Finds a string between two delimiters.
## Parameters
**data**: `string`
the data.
**start\_string**: `string`
start string.
**end\_string**: `string`
end string.
## Returns
`string` \| `undefined`
## Defined in
[src/utils/Utils.ts:84](https://github.com/LuanRT/YouTube.js/blob/af92984523f90200a18314b94478a2697c9deab0/src/utils/Utils.ts#L84)