Apply a callback to an array: Difference between revisions
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(Updated Julia) |
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=={{header|Julia}}== |
=={{header|Julia}}== |
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<lang julia> |
<lang julia> |
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numbers = [1, 3, 5, 7] |
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julia> map(x -> x*2,a) |
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square1 = [square(n) for n in numbers] # list comprehension |
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5-element Int32 Array: |
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2 |
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squares2a = map(square, numbers) # functional form |
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4 |
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6 |
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squares2b = map(x -> x*x, numbers) # functional form with `lambda` |
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8 |
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10 |
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#There is also extended block form for the map function |
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</lang> |
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squares2c = map(numbers) do x |
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.* ./ .\ .^ |
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sum = 0 |
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The element-wise binary addition, subtraction, multiplication, left division, right division, and exponentiation operators |
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for i = 1:x |
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<lang julia> |
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sum += x^2 #trivial, but you get the point |
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julia> a .* 2 |
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end |
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5-element Int32 Array: |
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return sum |
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2 |
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end |
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4 |
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6 |
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squares3 = [n * n for n in numbers] # no need for a function, |
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8 |
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10 |
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squares4 = numbers .* numbers #element-wise operation |
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</lang> |
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squares4a = numbers .^ 2 #includes .+, .-, ./, comparison, and bitwise operations as well</lang> |
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=={{header|Lang5}}== |
=={{header|Lang5}}== |
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