typescript password entropy

entropy.ts

const classes : Array<[RegExp, number]>=  [
    [ /^[0-9]+$/, 3.322],
    [ /^[0-9A-F]+$/, 4.000],
    [ /^([A-Z]+|[a-z]+)$/, 4.700],
    [ /^([A-Z0-9]+|[a-z0-9]+)$/, 5.170],
    [ /^[A-Za-z]+$/, 5.700],
    [ /^[A-Za-z0-9]+$/, 5.954],
    [ /^[a-z0-9!"#$%&'()*+,.\/:;<=>?@\[\] ^_`{|}~-]*$/i, 6.555],
    [ /^[\p{Cc}\p{Cn}\p{Cs}]+$/gu, 7.768],
    [ /^.+$/, 8.000]
]

function bitsPerSymbolGivenString(p: string): number{
    // See https://en.wikipedia.org/wiki/Password_strength
    for (let [pattern, bps] of classes){
        if(pattern.test(p)){
            console.log("bps", bps)
            return bps
        }
    }
    return 0
}


export function passwordEntropyBits(p: string): number{
    if (p == "") {return 0}

    return bitsPerSymbolGivenString(p) * p.length
}