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map

map(f, c...) -> collection

Transform collection c by applying f to each element. For multiple collection arguments, apply f elementwise.

julia> map((x) -> x * 2, [1, 2, 3])
3-element Array{Int64,1}:
 2
 4
 6

julia> map(+, [1, 2, 3], [10, 20, 30])
3-element Array{Int64,1}:
 11
 22
 33

Examples

julia> array = Int[1,2,3]
       map(x -> x + 1, array)
3-element Array{Int64,1}:
 2
 3
 4

julia> array = Int[1,2,3]
       map(x -> x * 2, array)
3-element Array{Int64,1}:
 2
 4
 6

julia> map((x) -> x^3, [1 2 3])
1x3 Array{Int64,2}:
 1      8       27
julia> function Foo(x,y)
                return 2(x+y)
            end
julia> map(Foo, [1 2 3], ones(1, 3))
1x3 Array{Float64,2}:
 4.0    6.0     8.0

See Also

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