18 lines
647 B
Pony
18 lines
647 B
Pony
use "assert" // due to the use of Fact
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- - -
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var numbers = Array[I32](16) // creating array of 32-bit ints with initial allocation for 16 elements
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numbers.push(10) // add value 10 to the end of array, extending the underlying memory if needed
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try
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let x = numbers(0) // fetch the first element of array. index starts at 0
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Fact(x == 10) // try block is needed, because both lines inside it can throw exception
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end
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var other: Array[U64] = [10, 20, 30] // array literal
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let s = other.size() // return the number of elements in array
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try
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Fact(s == 3) // size of array 'other' is 3
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other(1) = 40 // 'other' now is [10, 40, 30]
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end
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