94 lines
1.2 KiB
V
94 lines
1.2 KiB
V
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pub fn main() {
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// ==================================== //
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// Basic for
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numbers := [1,2,3,4,5]
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for num in numbers {
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println(num)
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}
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names := ['Sam', 'Peter']
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for i, name in names {
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println("${i} - ${name}")
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}
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// ==================================== //
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mut numbers2 := [1,2,3,4,5]
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for mut num in numbers2 {
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num++
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}
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println(numbers2)
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// ==================================== //
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nums := [1,2,3,4,5]
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iter := SquareIterator {
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arr : nums
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}
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for squared in iter {
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println(squared)
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}
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// ==================================== //
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m := {
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'one' : 1,
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'two' : 2
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}
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for key, value in m {
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println('${key} -> ${value}')
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}
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// ==================================== //
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for key, _ in m {
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println("${key}")
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}
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for _, value in m {
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println("${value}")
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}
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// ==================================== //
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}
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struct SquareIterator {
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arr []int
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mut:
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idx int
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}
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fn (mut iter SquareIterator) next() ?int{
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if iter.idx >= iter.arr.len {
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return none
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}else {
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defer {
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iter.idx++
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}
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return iter.arr[iter.idx]
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}
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}
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//fn (mut iter SquareIterator) next() ?int {
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// if iter.idx >= iter.arr.len {
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// return none
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// }
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// defer {
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// iter.idx++
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// }
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//
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// return iter.arr[iter.idx] * iter.arr[iter.idx]
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//}
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