10 lines
548 B
Plaintext
10 lines
548 B
Plaintext
A magic number is a number that comes out of nowhere, and is directly used in a statement. Magic numbers are often used, for instance to limit the number of iterations of a loop, to test the value of a property, etc.
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Using magic numbers may seem obvious and straightforward when you're writing a piece of code, but they are much less obvious and straightforward at debugging time.
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That is why magic numbers must be demystified by first being assigned to clearly named variables before being used.
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-1, 0 and 1 are not considered magic numbers. |