The [strman](https://github.com/dleitee/strman) method `isuppercase` exported as a [Node.js](https://nodejs.org/) module.

Returns `true` if text is upper case only.

A collection of functions for working with different casings.

Test if a value is an uppercase string.

Checks whether the input is a string containing only uppercase characters

A string utility module that handles all cases gracefully.

The utils used in angle-FE team

This is a [fonk](https://github.com/Lemoncode/fonk) microlibrary that brings validation capabilities to validate if a field of a form is an uppercase string

Test if a value is an uppercase string.

Fork of is-upper-case with added locale support

A request input validator for expressjs

helps users to generate strong passwords by length and type of content

Validates if a value is an uppercase string.

A package that returns true or false dependant on the given string being uppercase or lowercase.

TypeScript based generic, fluent validation framework library.

My riveting module

caseforge - Effortlessly convert between snake_case, camelCase, and more in TypeScript. Zero dependencies, type-safe, and easy to use for any project.

Strility is a string manipulation library

Simple tool to check if a string is uppercase

Type definitions for is-upper-case from https://www.github.com/DefinitelyTyped/DefinitelyTyped