Data Storage Development Tutorials, Guides & Insights

Represents true or false.

  let isLoggedIn = true;
  let hasAccess = false;
  console.log(isLoggedIn && hasAccess); // false

• Variables are accessible within the entire function they are declared in.
• Example:

     function test() {
       var y = 20;
       console.log(y); // 20
     }
     console.log(y); // Error: y is not defined

• Regularly back up your database to prevent data loss.

• Always validate and sanitize user inputs to prevent SQL injection attacks, even though SQLite is less prone to such vulnerabilities compared to other DBMS.