DEBUGGING AND TRACING

CODING CHALLENGES | DEBUGGING AND TRACING

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ON THIS PAGE
CHALLENGE 1 | IDENTIFY THE ERROR TYPES
CHALLENGE 2 | EVEN NUMBERS SYNTAX ERROR
CHALLENGE 3 | CALCULATE THE AVERAGE RUNTIME ERROR
CHALLENGE 4 | CALCULATE THE SQUARE RUNTIME ERROR

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CHALLENGE 1 | IDENTIFY THE ERROR TYPES

1: For the code below give the error type and explain the error.
def foo():
print(bar)
foo()

2: For the code below give the error type and explain the error.
def add(a, b):
return a + b
print(add(2, '3'))

3: For the code below give the error type and explain the error.
d = {'a': 1, 'b': 2}
print(d['c'])

4: For the code below give the error type and explain the error.
s = 'string'
print(s.undefined_attribute)

5: For the code below give the error type and explain the error.
l = [1, 2, 3]
print(l[3])

CHALLENGE 2 | EVEN NUMBERS SYNTAX ERROR

TASK
The following code is meant to take a list of numbers and return the sum of all even numbers in the list. However, there is an error in the code. Your task is to find the error, identify the issue, and correct it to make the code work as intended.

PYTHON
JAVASCRIPT
JAVA
PSEUDOCODE

CHALLENGE 3 | CALCULATE THE AVERAGE RUNTIME ERROR

TASK
The following code is meant to take a list of numbers and return the average of all numbers in the list. However, there is a runtime error in the code. Your task is to find the error, identify the issue, and correct it to make the code work as intended.

PYTHON
JAVASCRIPT
JAVA
PSEUDOCODE

CHALLENGE 4 | CALCULATE THE SQUARE RUNTIME ERROR

TASK
The following code is meant to take a user-inputted number and calculate the square of that number. However, there is a potential runtime error in the code that can be triggered by certain user inputs. Your task is to find the error, identify the issue, and correct it to make the code work as intended, regardless of the user input.

PYTHON
JAVASCRIPT
JAVA
PSEUDOCODE

NAVIGATION