D&A notes

// Given 2 positive integers find out if the 2 numbers have the same frequency of digits

function numberToArrStr(num){
    return num.toString().split('');
};

function incrementFrequency(obj){
    return function(n){
        obj[n] = ++obj[n] || 1
    };
};

function sameFrequency(num1, num2){
    const num1Frequency = {};
    const num2Frequency = {};

    const num1toArr = numberToArrStr(num1);
    const num2toArr = numberToArrStr(num2);
  
    if(num1toArr.length !== num2toArr.length) return false;

    num1toArr.forEach(incrementFrequency(num1Frequency));

    num2toArr.forEach(incrementFrequency(num2Frequency));
    
    let isSame = true;    
   
    Object.keys(num1Frequency).forEach( n => {
        if(num1Frequency[n] !== num2Frequency[n]) {
            isSame = false
        };
    });
    return isSame;
};

sameFrquency(34, 44)