41 lines
1.2 KiB
C#
41 lines
1.2 KiB
C#
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using System.Collections.Generic;
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namespace UnityEngine.InputSystem.Utilities
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{
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internal static class MiscHelpers
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{
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public static TValue GetValueOrDefault<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, TKey key)
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{
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return dictionary.TryGetValue(key, out var value) ? value : default;
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}
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public static IEnumerable<TValue> EveryNth<TValue>(this IEnumerable<TValue> enumerable, int n, int start = 0)
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{
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var index = 0;
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foreach (var element in enumerable)
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{
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if (index < start)
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{
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++index;
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continue;
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}
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if ((index - start) % n == 0)
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yield return element;
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++index;
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}
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}
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public static int IndexOf<TValue>(this IEnumerable<TValue> enumerable, TValue value)
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{
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var index = 0;
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foreach (var element in enumerable)
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if (EqualityComparer<TValue>.Default.Equals(element, value))
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return index;
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else
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++index;
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return -1;
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}
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}
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}
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