/**

* @function lower

* @description Will convert the entire string to lowercase letters.

* @param {String} url - The input URL string

* @return {String} Lowercase string

* @example lower("HELLO") => hello

* @example lower("He_llo") => he_llo

*/

const lower = (str) => {

if (typeof str !== 'string') {

throw new TypeError('Invalid Input Type')

}

let lowerString = ''

for (const char of str) {

let asciiCode = char.charCodeAt(0)

if (asciiCode >= 65 && asciiCode <= 90) {

asciiCode += 32

}

lowerString += String.fromCharCode(asciiCode)

}

return lowerString

}

export { lower }