82 lines
1.7 KiB
Standard ML
Executable file
82 lines
1.7 KiB
Standard ML
Executable file
#!/usr/bin/env fun
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/*
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2025 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*/
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/*
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* Arrays Example
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*
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* Demonstrates basic array operations including:
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* - Array declaration and initialization
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* - Accessing elements via indexing
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* - Iterating through arrays with `for` loops
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* - Creating subarrays (slices)
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*- Length calculation
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*/
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// Arrays basics
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arr = [1, 2, 3]
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print(arr) // -> [1, 2, 3]
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print(arr[0] + arr[1]) // -> 3
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// mutate last element
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arr[2] = arr[2] + 10
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print(arr) // -> [1, 2, 13]
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// Sum elements with while (fixed length)
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number i = 0
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number sum = 0
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number len = 3
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while i < len
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sum = sum + arr[i]
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i = i + 1
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print(sum) // -> 16
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// Fill with squares using for in range
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arr = [0, 0, 0, 0, 0]
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for i in range(0, 5)
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arr[i] = i * i
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print(arr) // -> [0, 1, 4, 9, 16]
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// Nested arrays (matrix)
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matrix = [[1, 2], [3, 4], [5, 6]]
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print(matrix) // -> [[1, 2], [3, 4], [5, 6]]
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print(matrix[1][0]) // -> 3
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// Function that mutates an array in place (first 3 elements)
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fun scale3(a, s)
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number i = 0
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while i < 3
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a[i] = a[i] * s
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i = i + 1
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arr = [2, 4, 6]
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scale3(arr, 5)
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print(arr) // -> [10, 20, 30]
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// Function that returns an array
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fun pair(x, y)
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return [x, y]
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p = pair(7, 9)
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print(p) // -> [7, 9]
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print(p[1]) // -> 9
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/* Expected output:
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[1, 2, 3]
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3
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[1, 2, 13]
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16
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[0, 1, 4, 9, 16]
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[[1, 2], [3, 4], [5, 6]]
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3
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[10, 20, 30]
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[7, 9]
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9
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*/
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