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Questions and Answers
Which of the following is a popular programming language for web development?
Which of the following is a popular programming language for web development?
- Java
- Python (correct)
- C++
- Ruby
What is the output of $5 + 3 * 2$ in Python?
What is the output of $5 + 3 * 2$ in Python?
- 11
- 16
- 13 (correct)
- 10
Which of the following is a correct way to comment out a single line in Python?
Which of the following is a correct way to comment out a single line in Python?
- # This is a comment (correct)
- // This is a comment
- // This is a comment //
- -- This is a comment
What does the 'len()' function do in Python?
What does the 'len()' function do in Python?
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Study Notes
Python for Web Development
- Python is a popular programming language used for web development.
Operators in Python
- The order of operations in Python follows the PEMDAS rule: parentheses, exponents, multiplication and division, and addition and subtraction.
- The output of $5 + 3 * 2$ in Python is 11, because the multiplication is evaluated first.
Commenting in Python
- A single line can be commented out in Python using the '#' symbol at the beginning of the line.
len() Function in Python
- The 'len()' function in Python returns the number of items in an object, such as the length of a string or the number of elements in a list.
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