28 lines
547 B
Go
28 lines
547 B
Go
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package collection
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import "sync"
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func MapSync[T any, R any](collection []T, cb func(item T, idx int) R) []R {
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result := make([]R, len(collection))
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for i, v := range collection {
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result[i] = cb(v, i)
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}
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return result
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}
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func Map[T any, R any](collection []T, cb func(item T, idx int) R) []R {
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result := make([]R, len(collection))
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wg := sync.WaitGroup{}
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wg.Add(len(collection))
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for i, v := range collection {
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func(v T, i int) {
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go func() {
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defer wg.Done()
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result[i] = cb(v, i)
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}()
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}(v, i)
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}
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wg.Wait()
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return result
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}
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