JavaScript Console Commands You Should Know

1. console.log() - The Basics
   • Prints a message to the console

     let name = "Osman";
     console.log(name); 
     // Osman
     

2. console.error() - Highlighting Errors
   • Displays an error message in the console

     console.error("Something went wrong");
     // Displays the error message with a red icon
     

3. console.warn() - Highlighting Warnings
   • Displays a warning message in the console

     console.warn("Something is not right");
     // Displays the warning message with a yellow icon
     

4. console.info() - Highlighting Informations
   • Displays an informational message in the console

     console.info("Here's some useful information");
     // Displays the informational message with a blue icon
     

5. console.table() - Tabular Data Display
   • Displays an array in a table format

     let users = [
       {name: Osman, age: 25},
       {name: Ali, age: 30}
     ];
     console.table(users);
     // Displays the users in a table format
     

6. console.group() and console.group.end() - **Organizing **Logs
   • Groups related logging statements together

     console.group("User Details");
     console.log("Name: Osman");
     console.log("Age: 25");
     console.groupEnd();
     console.group("Purchase Details");
     console.log("Product: Laptop");
     console.log("Price: $1000");
     console.groupEnd();
     

7. console.assert() - Conditional Logging
   • Logs a message if the provided assertion is false

     let age = 15;
     console.assert(age >= 18, "User is not an adult!");
     // This will log an error message since age is less than 18
     

8. console.clear() - Cleaning Up
   • Clears the console

     console.clear();
     // This will clear all previous logs in the console