Learn Recursion by Building a Decimal to Binary Converter - Step 109

JavaScript
1

Hello,

Quick question

why in the code I need launch

decimalToBinary(inputInt) and not directly decimalToBinary()

and then why do I need the “input” in const decimalToBinary = (input) => {};

then why something like this is not working :

convertBtn.addEventListener("click", checkUserInput);

const checkUserInput = () => {
  const b = parseInt(numberInput.value);

  if (!numberInput.value || isNaN(b)) {
    alert("Please provide a decimal number");
    return;
  }

  if (b === 5) {
    showAnimation();
    return;
  }

  result.textContent = decimalToBinary();
  numberInput.value = "";
}

const decimalToBinary = () => {
  const a = parseInt(numberInput.value)
  if (a === 0 || a === 1) {
    return String(a);
  } else {
   const c = (decimalToBinary((a / 2)) + (a % 2));
   
    return String(c);
    
  }
};

I belive I’ve miss the key information at some point :sweat_smile:
thanks

Challenge Information:

Learn Recursion by Building a Decimal to Binary Converter - Step 109

2

because the function needs a number to convert, and that is given to the function as the argument

to use the value of the arguments you need to give a parameter when you create the function

the function is missing the argument, the function doesn’t know what number to convert

3

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