Textcases

Validate text case and convert strings from a case to another. Useful to validate/enforce naming conventions, convert names into code, and more.

Supported formats:

Case	Validation	Conversion	Output
Camel case	isValidCamelCase	toCamelCase	helloWorld
Cobol case	isValidCobolCase	toCobolCase	HELLO-WORLD
Flat case	isValidFlatCase	toFlatCase	helloworld
Kebab case	isValidKebabCase	toKebabCase	hello-world
Macro case	isValidMacroCase	toMacroCase	HELLO_WORLD
Pascal case	isValidPascalCase	toPascalCase	HelloWorld
Sentence case	isValidSentenceCase	toSentenceCase	Hello world
Snake case	isValidSnakeCase	toSnakeCase	hello_world
Title case	isValidTitleCase	toTitleCase	Hello World
Train case	isValidTrainCase	toTrainCase	Hello-World
Upper flat case	isValidUpperFlatCase	toUpperFlatCase	HELLOWORLD

Installation

npm install textcases

Usage

Case validation

Use any of the shorthand validation function, for example:

import { isValidCamelCase } from 'textcases';

isValidCamelCase('helloWorld'); // true
isValidCamelCase('HelloWorld'); // false

Or use the generic validate function, for example:

import { validate, Case } from 'textcases';

validate('helloWorld', Case.CAMEL_CASE); // true
validate('HelloWorld', Case.CAMEL_CASE); // false

Case conversion

Use any of the shorthand conversion function, for example:

import { toCamelCase } from 'textcases';

toCamelCase('hello world'); // helloWorld

Or use the generic convert function:

import { convert, Case } from 'textcases';

convert('hello world', Case.CAMEL_CASE); // helloWorld

If you know the source case, you can add it as the second parameter of either shorthands or generic functions:

import { toCamelCase, convert, Case } from 'textcases';

toCamelCase('HelloWorld', Case.PASCAL_CASE);
convert('HelloWorld', Case.CAMEL_CASE, Case.PASCAL_CASE);

Note that if you pass the source case, the source string will be validated against this case and an error can be thrown if it doesn't match.