/**

* @param {string} s

* @return {number}

*/

const MAX_INT = 2 ** 31 - 1

const MIN_INT = -MAX_INT - 1

var myAtoi = function (str) {

const integer = getIntegerFrom(str)

if (integer > MAX_INT) return MAX_INT

if (integer < MIN_INT) return MIN_INT

return integer

}

const getIntegerFrom = (str) => {

let isNegative = null,

integer = null

const realInteger = () => (isNegative ? -1 : 1) * integer

const shouldSkipSpace = (char) =>

char === ' ' && integer == null && isNegative == null

for (const char of str) {

if (shouldSkipSpace(char)) continue

if (char === '-' || char === '+') {

if (isNegative !== null || integer !== null) return realInteger()

isNegative = char === '-'

continue

}

const charCode = char.charCodeAt(0)

if (!(charCode > 47 && charCode < 58)) return realInteger()

integer = integer * 10 + (charCode - 48)

}

return realInteger()

}

console.log(myAtoi('4193 with words'))