San Jose State University Dep|artment of Applied Data Science
**DATA 200 Computational Programming for Data Analytics**
Spring 2024 Instructor: Ron Mak
"
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"# 4.15 Passing Arguments to Functions: A Deeper Look "
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"#### If you pass an **immutable** value such as an int, float, or string to a function as an argument, the function will not be able to change the argument's value by modifying the corresponding parameter."
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"def double_it(x):\n",
" x *= 2 # change the value of the parameter\n",
" return x"
]
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"n = 5\n",
"n"
]
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"double_it(n)"
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"#### Even though the function replaced the value of its parameter `x` with twice the value, the value of argument`n` did not change."
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"n"
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"#### Later, we'll learn how a function can change the value of a **mutable** argument such as a list."
]
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"##########################################################################\n",
"# (C) Copyright 2019 by Deitel & Associates, Inc. and #\n",
"# Pearson Education, Inc. All Rights Reserved. #\n",
"# #\n",
"# DISCLAIMER: The authors and publisher of this book have used their #\n",
"# best efforts in preparing the book. These efforts include the #\n",
"# development, research, and testing of the theories and programs #\n",
"# to determine their effectiveness. The authors and publisher make #\n",
"# no warranty of any kind, expressed or implied, with regard to these #\n",
"# programs or to the documentation contained in these books. The authors #\n",
"# and publisher shall not be liable in any event for incidental or #\n",
"# consequential damages in connection with, or arising out of, the #\n",
"# furnishing, performance, or use of these programs. #\n",
"##########################################################################\n"
]
},
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"source": [
"# Additional material (C) Copyright 2024 by Ronald Mak"
]
}
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