Pattern check (Edexcel GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the main purpose of pattern checking in programming?
What is the main purpose of pattern checking in programming?
To validate user input matches rules
Why is pattern checking essential in programs?
Why is pattern checking essential in programs?
It prevents runtime errors
What should you typically check first when validating data patterns?
What should you typically check first when validating data patterns?
Overall length
What does the len() function do in pattern checking?
What does the len() function do in pattern checking?
Counts characters in a string
What does the isalpha() function check?
What does the isalpha() function check?
If character is a letter A-Z or a-z
What does the isdigit() function validate?
What does the isdigit() function validate?
If character is number 0-9
In Python, what position is the first character of a string?
In Python, what position is the first character of a string?
Position 0
How do you access specific character positions in a string?
How do you access specific character positions in a string?
Using indexing with square brackets
Why are nested if statements used in pattern validation?
Why are nested if statements used in pattern validation?
To organize logic and prevent errors
Which is a better variable name for storing extracted digits?
Which is a better variable name for storing extracted digits?
digits
What type of error messages should you provide to users?
What type of error messages should you provide to users?
Specific messages about the error
In the worked example 'LL DD DD', what is validated in Step 2?
In the worked example 'LL DD DD', what is validated in Step 2?
Letters at positions 0 and 1