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is it possible to write a whole method that returns a value in ternary operator?

March 7, 2022

Is it possible to do this kind of code in the ternary operator in javascript? If yes, I think I’m doing it wrong, when I tried the code below I wrote it just return the whole function(){} method

  let sumtotal = products.length > 1 ? function(){
    let total = 0;
    for(const { price, quantity } of products) {
      total += (price * quantity);
    }
    return parseFloat(total).toFixed(2);
  } : function() {
    let total = (products[0].price * products.quantity);
    return parseFloat (total).toFixed(2);
  };

I was hoping that this would return an actual value like the output would be an Integer or float.

>Solution :

"I was hoping that this would return an actual value like the output would be an Integer or float."

You can wrap your function definition in parenthesis and call it with () immediately after. An IIFE. You already have return so you are good on that part.

WITH CHANGES:

  let sumtotal = products.length > 1 ? (function(){
    let total = 0;
    for(const { price, quantity } of products) {
      total += (price * quantity);
    }
    return parseFloat(total).toFixed(2);
  })() : (function() {
    let total = (products[0].price * products.quantity);
    return parseFloat (total).toFixed(2);
  })();

With the IIFEs in place, the functions will run where they are. I haven’t checked any other parts of your code, so this solution is just for the "return an actual value like the output would be an Integer or float" part.