JavaScript - string to -->> camelCase, PascalCase, snake_case, kebab-case

// camelCase
// PascalCase
// snake_case
// kebab-case

function toCamel(string) {
  return string.replace(/(^\w{1})|(\s{1}\w{1})/g, match => match.toUpperCase()).replace(/ /g, '').replace(/^\w/, c => c.toLowerCase())
}

function toPascal(string) {
  return string.replace(/(^\w{1})|(\s{1}\w{1})/g, match => match.toUpperCase()).replace(/ /g, '')
}

function toSnake(string) {
  return string.toLowerCase().replace(/ /g, '_')
}

function toKekab(string) {
  return string.toLowerCase().replace(/ /g, '-')
}

let string = 'yo this is a string'

console.log('camel:', toCamel(string))
console.log('Pascal:', toPascal(string))
console.log('_snake:', toSnake(string))
console.log('_SNAKE:', toSnake(string).toUpperCase())
console.log('kekab:', toKekab(string))


// outputs:
// camel: yoThisIsAString
// Pascal: YoThisIsAString_snake: yo_this_is_a_string
// _SNAKE: YO_THIS_IS_A_STRING
// kekab: yo-this-is-a-string

// https://repl.it/@jasenmichael/camel-Pascal-snake-SNAKE-kekab