21 lines
535 B
Julia
21 lines
535 B
Julia
julia> all(iseven, 1:5) # not all integers between 1 and 5 are even.
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false
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julia> findfirst(iseven, 1:5) # the first even integer is at index 2 in the range.
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2
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julia> count(iseven, 1:5) # there are two even integers between 1 and 5.
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2
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julia> filter(iseven, 1:5) # here are the even integers in the given range.
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2-element Array{Int64,1}:
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2
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4
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julia> map(iseven, 1:5) # we apply our function to all integers in range.
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5-element Array{Bool,1}:
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false
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true
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false
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true
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false
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