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11 строки
423 B
Plaintext
11 строки
423 B
Plaintext
Laziness
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Nix evaluates expression only when needed.
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This is a great feature when working with packages.
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nix-repl> let a = builtins.div 4 0; b = 6; in b
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6
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Since a is not needed, there's no error about division by zero, because the expression is not in need to be evaluated.
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That's why we can have all the packages defined on demand, yet have access to specific packages very quickly.
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