Javascript Tutorial Development Tutorials, Guides & Insights

• Logical operators evaluate left to right; ensure your conditions are correct.

• The user must be logged in (isLoggedIn is true).
• The user's account must not be suspended (isSuspended is false).

   let number = 7;
   if (number % 2 === 0) {
     console.log(number + " is even.");
   } else {
     console.log(number + " is odd."); // Outputs: 7 is odd.
   }

   for (let i = 0; i < 5; i++) {
     console.log("Count:", i);
   }
   // Outputs:
   // Count: 0
   // Count: 1
   // Count: 2
   // Count: 3
   // Count: 4

• Iterating Over Arrays:

  for (let fruit of fruits) {
    console.log(fruit);
  }

Symbols are unique identifiers.

  let id = Symbol("id");
  console.log(id); // Symbol(id)

     let age = 25;
     age = 26; // Allowed
     console.log(age); // 26

• Used for variables whose value should not change.
• Example: