实现36进制转换

Question

function convertTo36(num) {
    const digits = `0123456789abcdefghijklmnopqrstuvwxyz`
    let result = ''

    while (num > 0) {
        result = digits[num % 36] + result
        num = Math.floor(num / 36)
    }
    return result
}


function convertFrom36(str) {
    const digits = `0123456789abcdefghijklmnopqrstuvwxyz`
    let result = 0
    for (let i = 0; i < str.length; i++) {
        const digit = digits.indexOf(str[i])
        result = result * 36 + digit
    }
    return result
}

//test

console.log(convertTo36(123124124123))
console.log(convertFrom36('z12cd12'))