Python Documentation Function map

Function defined in library builtins

map(function, sequence)

Given a function and a sequence, constructs a sequence of the results of applying the function to the elements of the sequence.

(Technical note: this function is actually a constructor of map objects.)

Parameters

functionfunction to apply to the elements

sequencesequence to map

Return

Sequence of elements transformed by applying the function

Examples

Code

list(map(abs, [-1, 2, -3]))

Result

[1, 2, 3]

Code

list(map(lambda n: n * 2, [1, 2, 3]))

Result

[2, 4, 6]

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