What are the best ways to utilize JavaScript logical operators effectively?

Trying to wrap my head around the concept of combining logical operators in Javascript. Specifically, I'm wondering how to output a statement only if certain conditions are met:

  1. If flavor is either vanilla or chocolate.
  2. If vessel is either cone or bowl.
  3. If toppings are either sprinkles or peanuts.

I've written this code, but even though the comparison seems false, it's still displaying a message:

var flavor = 'vanilla';
var vessel = 'cup';
var toppings = 'peanuts';

if ((flavor === 'vanilla' || flavor === 'chocolate') && (vessel === 'cone' || vessel === 'bowl')) {
   if (toppings === 'peanuts' || toppings === 'sprinkles') {
       console.log('I\'d like two scoops of ' + flavor + ' ice cream in a ' + vessel + ' with ' + toppings + '.');
   }
}

The result currently shows:

I'd like two scoops of vanilla ice cream in a plate with peanuts.

What am I overlooking? Struggling to pinpoint where the mistake lies.

Answer №1

This scenario:

flavor === 'vanilla' || 'chocolate'

is incorrect. Each condition needs to be tested separately:

(flavor === 'vanilla' || flavor === 'chocolate')

The rest of the conditions also contain similar mistakes.

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