> For the complete documentation index, see [llms.txt](https://docs.angular-package.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.angular-package.dev/type/is-not.md).

# is not

- [isNotBoolean()](https://docs.angular-package.dev/type/is-not/isnotboolean.md)
- [isNotDefined()](https://docs.angular-package.dev/type/is-not/isnotdefined.md)
- [isNotFunction()](https://docs.angular-package.dev/type/is-not/isnotfunction.md)
- [isNotNull()](https://docs.angular-package.dev/type/is-not/isnotnull.md)
- [isNotNumber()](https://docs.angular-package.dev/type/is-not/isnotnumber.md)
- [isNotString()](https://docs.angular-package.dev/type/is-not/isnotstring.md)
- [isNotUndefined()](https://docs.angular-package.dev/type/is-not/isnotundefined.md)