38 lines
695 B
Plaintext
38 lines
695 B
Plaintext
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# Arrays
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func main():
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# Arrays are ordered collections of values.
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# You can define an array using `[...]`:
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nums := [10, 20, 30]
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# Arrays are 1-indexed.
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>> nums[2]
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= ???
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# Arrays can be empty but must have a type:
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empty := [:Int]
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>> empty
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= []
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# You can loop over an array with `for value in array`:
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sum := 0
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for num in nums:
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sum += num
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>> sum
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= ???
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# Array comprehensions let you transform arrays concisely:
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squares := [n + 1 for n in nums]
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>> squares
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= [???]
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# You can also get the index with `for index, value in array`:
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for i, num in nums:
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>> squares[i] == num * num
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= yes
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