Outline
- JavaScript Fundamentals -- What is JavaScript?
- JavaScript Fundamentals -- Variables and Scope
- JavaScript Fundamentals -- Primitive Types
- JavaScript Fundamentals -- The this Keyword
-
JavaScript Fundamentals -- The JavaScript Console
- Introduction
- console.log + Exercise
- console.log Exercise Review
- console.info + Exercise
- console.info Exercise Review
- console.warn + Exercise
- console.warn Exercise Review
- console.error + Exercise
- console.error Exercise Review
- console.table + Exercise
- console.table Exercise Review
- console.assert + Exercise
- console.assert Exercise Review
- console.group + Exercise
- console.group Exercise Review
- Conclusion
-
JavaScript Fundamentals -- Logical and Comparison Operators
- Introduction to Logical and Comparison Operators
- Truthy and Falsy Values
- Comparison Operators -- Equality and Inequality
- Comparison Operators -- Equality and Inequality Exercise
- Comparison Operators -- Equality and Inequality Exercise Review
- Comparison Operators -- Relational
- Comparison Operators -- Relational Exercise
- Comparison Operators -- Relational Exercise Review
- Logical Operators -- Or
- Logical Operators -- Or Exercise
- Logical Operators -- Or Exercise Review
- Logical Operators -- And
- Logical Operators -- And Exercise
- Logical Operators -- And Exercise Review
- Logical Operators -- Not
- Logical Operators -- Not Exercise
- Logical Operators -- Not Exercise Review
- Logical Operators -- Nullish Coalescing
- Logical Operators -- Nullish Coalescing Exercise
- Logical Operators -- Nullish Coalescing Exercise Review
- Logical and Comparison Operators Conclusion
-
JavaScript Fundamentals -- Looping in JavaScript
- Introduction to Looping in JavaScript
- for Loops
- for Loops -- Why Use Them and Gotchas
- for ... of Loops
- Looping Exercise 1
- Looping Exercise 1 Review
- for ... in Loops
- Looping Exercise 2
- Looping Exercise 2 Review
- do while Loops
- Breaking out of Loops
- Skipping Passes Through Loops
- Looping Exercise 3
- Looping Exercise 3 Review
- Conclusion to Looping in JavaScript
-
JavaScript Fundamentals -- Functions in JavaScript
- Introduction to Functions in JavaScript
- Named Functions
- Anonymous Functions
- Arrow Functions
- Functions in JavaScript Exercise 1
- Functions in JavaScript Exercise 1 Review
- Default Parameters
- Named Parameters
- Rest Parameters
- Functions in JavaScript Exercise 2
- Functions in JavaScript Exercise 2 Review
- Functions in JavaScript Real Demo
- Conclusion to Functions in JavaScript
- JavaScript Fundamentals -- Strings, Numbers, & Dates
- JavaScript Fundamentals -- Objects in JavaScript
- JavaScript Fundamentals -- Arrays in JavaScript
- JavaScript Fundamentals -- Course Conclusion
Outline
- JavaScript Fundamentals -- What is JavaScript?
- JavaScript Fundamentals -- Variables and Scope
- JavaScript Fundamentals -- Primitive Types
- JavaScript Fundamentals -- The this Keyword
-
JavaScript Fundamentals -- The JavaScript Console
- Introduction
- console.log + Exercise
- console.log Exercise Review
- console.info + Exercise
- console.info Exercise Review
- console.warn + Exercise
- console.warn Exercise Review
- console.error + Exercise
- console.error Exercise Review
- console.table + Exercise
- console.table Exercise Review
- console.assert + Exercise
- console.assert Exercise Review
- console.group + Exercise
- console.group Exercise Review
- Conclusion
-
JavaScript Fundamentals -- Logical and Comparison Operators
- Introduction to Logical and Comparison Operators
- Truthy and Falsy Values
- Comparison Operators -- Equality and Inequality
- Comparison Operators -- Equality and Inequality Exercise
- Comparison Operators -- Equality and Inequality Exercise Review
- Comparison Operators -- Relational
- Comparison Operators -- Relational Exercise
- Comparison Operators -- Relational Exercise Review
- Logical Operators -- Or
- Logical Operators -- Or Exercise
- Logical Operators -- Or Exercise Review
- Logical Operators -- And
- Logical Operators -- And Exercise
- Logical Operators -- And Exercise Review
- Logical Operators -- Not
- Logical Operators -- Not Exercise
- Logical Operators -- Not Exercise Review
- Logical Operators -- Nullish Coalescing
- Logical Operators -- Nullish Coalescing Exercise
- Logical Operators -- Nullish Coalescing Exercise Review
- Logical and Comparison Operators Conclusion
-
JavaScript Fundamentals -- Looping in JavaScript
- Introduction to Looping in JavaScript
- for Loops
- for Loops -- Why Use Them and Gotchas
- for ... of Loops
- Looping Exercise 1
- Looping Exercise 1 Review
- for ... in Loops
- Looping Exercise 2
- Looping Exercise 2 Review
- do while Loops
- Breaking out of Loops
- Skipping Passes Through Loops
- Looping Exercise 3
- Looping Exercise 3 Review
- Conclusion to Looping in JavaScript
-
JavaScript Fundamentals -- Functions in JavaScript
- Introduction to Functions in JavaScript
- Named Functions
- Anonymous Functions
- Arrow Functions
- Functions in JavaScript Exercise 1
- Functions in JavaScript Exercise 1 Review
- Default Parameters
- Named Parameters
- Rest Parameters
- Functions in JavaScript Exercise 2
- Functions in JavaScript Exercise 2 Review
- Functions in JavaScript Real Demo
- Conclusion to Functions in JavaScript
- JavaScript Fundamentals -- Strings, Numbers, & Dates
- JavaScript Fundamentals -- Objects in JavaScript
- JavaScript Fundamentals -- Arrays in JavaScript
- JavaScript Fundamentals -- Course Conclusion
Here's one possible solution to the exercise:
'use strict';
// 1. Create a new object called person, with a firstName key and a lastName key
// Put your first and last name as values to those keys
const person = {
firstName: 'Preston',
lastName: 'Lamb'
};
// 2. Log the firstName key using dot notation
console.log(person.firstName);
// 3. Log the lastName key using bracket notation
console.log(person['lastName']);
// 4. Freeze the object you created above
Object.freeze(person);
// 5. Try and change an attribute on the object. If you don't see the expected behavior, make the necessary fix so that the freeze method works.
person.middleInitial = 'J';
You can review the answers to this exercise here on StackBlitz.
Click here to read more about objects in JavaScript.