JS Basics

• Open the project in Visual Studio Code
• Start the Live Server
• Open the Console tab on Chrome's DevTools

Exercise 3: Objects and methods

1. Define a new object called dog:

   • Give it a property name, set it to any value
   • Give it a method bark, which will log "woof!" to the console when invoked
   • Log dog.name to the console
   • Invoke dog.bark()
   • Log dog to the console

2. Update the method bark above to say "woof, I'm <name>!"

   • e.g. if dog.name is "Timmy", dog.bark() should print "woof, I'm Timmy!" on the console

3. Define a new object called person

   • Give it a firstName property
   • Give it a lastName property
   • Give it a name method that returns the full name of the person
   • Give it a birthYear property
   • Give it an ageThisYear method that returns the age of the person
     • e.g. if person.birthYear is 2000 then person.ageThisYear() should return 18

4. Define a variable called someString with any string as its value

5. Log the above string's length property to the console

6. Set the length of someString to another number e.g. 200

7. Log the length property of someString to the console again. Did it change? Why or why not?

8. Explore some more string methods e.g. toLowerCase(), replace() etc. ([refer to MDN][mdn-string])

9. Create a variable called decimalNumber, giving it some numeric value

10. Use the toFixed() method to convert the number to a formatted string with 3 decimal places, and log it to the console

11. Declare a function sum that takes in two arguments and returns the sum of the two arguments

12. Log the value of the sum function's name property to the console

13. Log the return value of the sum function's toString() method to the console