Video 40-1 What is debugging and common types of errors
Video 40-2 Understand syntax errors messages
Video 40-3 Understand Reference errors and Type errors messages
Video 40-4 Debug and fix syntax error from Shopping list
Video 40-5 Fix reference and type errors from shopping list
Video 40-6 Money Master reference and query selector error ( part 1)
Video 40-7 Money Master debugging fix id and value error ( part 2)
Video 40-8 Money Master debugging fix balance and remaining ( part 3)
Video 40-9 Module Summary and Interview questions
QUIZ
Q1: What type of error is commonly caused by referencing a variable or function that has not been defined?
Ans: ReferenceError
Q2: What type of error is commonly caused by trying to perform an operation on a value that is not of the expected type?
Ans: TypeError
Q3: What type of error is commonly caused by trying to access an array element that does not exist? (try to google it)
Ans: RangeError
Q4: What type of error is commonly caused by trying to call a function that does not exist?
Ans: ReferenceError
Q5: What type of error will the following code throw?
const num = 10;
num();
Ans: TypeError
Q6: What type of error will the following code snippet produce?
let x = 10;
x = y + 5;
console.log(x);
Ans: ReferenceError
Q7: What type of error will the following code snippet produce?
const obj = { name: 'John' };
Object.keys(obj).forEach(prop => console.log(prop));
Ans: None of the above
Q8:What type of error will the following code snippet produce?
const name = 'John';
name.toUpperCase = () => 'JOHN';
console.log(name.toUpperCase());
Ans: None of the above
Q9:What type of error will the following code snippet produce?
const arr = [1, 2, 3];
arr.slice(-2, 0);
Ans: RangeError
Q10:What type of error will the following code snippet produce?
const greeting = 'Hello, world!';
Ans: None of the above
