A simple function to convert a variable value to binary.

decimal-to-binary.js

function binaryConvert() {
  var num = x;
  
  if (num != Math.floor(num)) {
    console.log("Please enter a number");
    
  } else if (num < 0) {
    console.log("Please enter a positive number");
  
  } else {
    var binary = parseInt(num, 10);
    console.log(binary.toString(2));
    
  }
}
  binaryConvert();

• This script can handle numbers as an integer or string value (e.g., 35 or "35") for var num.
• It will then check if the variable is an integer (after any JavaScript 'Type Conversions') using Math.floor and then whether or not the variable is less than zero to ensure either zero or a positive value is entered.
• Finally, it uses parseInt to convert the variable from a string to an integer (if it was indeed entered as a string, in say a web form), followed by toString(2) to convert the variable to a binary value as a string.

amazing job john

Pretty neat 👍

Great job