Question

Write a function in Java Script that accepts a string. The function takes the last digit of the ASCII code and returns a string of digits sorted in ascending order E.G. function("zDbc") returns “2,8,8,9” (z => 122, D=>68, b=>98, c=>99) ....i am not allowed to use any of the built-in functions

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

//required method

function stringToSortedDigits(text){

   //creating an array to store last digits of ascii codes of text

var arr=[];

//looping through text

for(var i=0;i<text.length;i++){

   //getting ascii code of character at index i

    var ascii_code=text.charCodeAt(i);

    //performing modulo operation by 10 to get the last digit

    var last_digit=ascii_code%10;

    //adding last digit to array

    arr.push(last_digit);

}

//now sorting the array in ascending order using bubble sort algorithm

for(var i=0;i<arr.length;i++){

    for(var j=0;j<arr.length-1;j++){

      if(arr[j]>arr[j+1]){

        //swapping elements at index j and j+1

        var temp=arr[j];

        arr[j]=arr[j+1];

        arr[j+1]=temp;

      }

    }

}

//now appending the array to an empty string and returning it

var result=""+arr;

return result;

}

//testing

alert(stringToSortedDigits("bzcD")); //should display 2,8,8,9