Get the default value even the Object[key] === null
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Updated
May 11, 2021 - JavaScript
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variable-declaration
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A program that prompts the user for a credit card number and then reports whether it is a valid American Express, MasterCard, or Visa card number per the Luhn's algorithm.
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Mar 31, 2021 - Python
shapes
triangle
overflow
position
variables
box-sizing
linear-gradient
border-box
flex-direction
variable-declaration
variable-use
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Updated
Sep 16, 2024 - CSS
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