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Lower.js

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/**

* @function lower

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

* @param {String} str - The input string

* @returns {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')

}

return str.replace(/[A-Z]/g, (char) =>

String.fromCharCode(char.charCodeAt() + 32)

)

}

export default lower