arithmetic-operation-with-prefix-zero/index.js

Adding without losing prefix zero

numberLength=(input)=>{
  input=(input<=0.1)?input*-1:input;
  if(input==10)return 2;
  var length = 0; 
  for( iloopCounter = 10 ; 1 ;iloopCounter*=10){
  length ++;
  if(Math.floor(input/iloopCounter)==0 || input/iloopCounter <0)break;
  }
  return length;
  }


exports.addWithZero = function(input,addvalue) {
  if(addvalue<=0){  console.log("AddValue should be greater than zero")
  return 0;
}
  var addedNumber = Number(input)+Number(addvalue);
  var prefixZero="";

  for(let iloopCounter = numberLength(addedNumber) ; iloopCounter < input.length; iloopCounter++){
prefixZero = "0" + prefixZero ;
  }

return prefixZero+addedNumber.toString() ;
  }


exports.subWithZero = function(input,addvalue) {
  if(addvalue<=0){  console.log("SubValue should be greater than zero")
  return 0;
}
var minus ="";
if(addvalue>Number(input)){ minus="-"}


  var addedNumber = Number(input)-Number(addvalue);
  var prefixZero="";


  for(let iloopCounter = numberLength(addedNumber) ; iloopCounter < input.length; iloopCounter++){
prefixZero = "0" + prefixZero ;
  }

return minus+prefixZero+((addedNumber<=-0.1)?addedNumber*-1:addedNumber).toString() ;


  }

exports.multiplyWithZero = function(input,addvalue) {
  var minus ="";
  if(addvalue<=(-0.1)){ minus="-"}
  if(addvalue==0) return 0;
  var addedNumber = Number(input)*Number(addvalue);
  var prefixZero="";


  for(let iloopCounter = numberLength((addedNumber<=-0.1)?addedNumber*-1:addedNumber) ; iloopCounter < input.length; iloopCounter++){
prefixZero = "0" + prefixZero ;
  }

return minus+prefixZero+((addedNumber<=-0.1)?addedNumber*-1 :addedNumber).toString() ;

}

exports.divWithZero = function(input,addvalue) {
  var minus ="";
  if(addvalue<=(-0.1)){ minus="-"}
  if(addvalue==0) { console.log("divValue should not be zero") ;return 0; }
  var addedNumber = Number(input)/Number(addvalue);
  var prefixZero="";


  for(let iloopCounter = numberLength(addedNumber) ; iloopCounter < input.length-1; iloopCounter++){
prefixZero = "0" + prefixZero ;
  }

return minus+prefixZero+((addedNumber<=-0.1)?addedNumber*-1 :addedNumber).toString() ;

}