slice

文件信息

• 📄 原文件：slice.go
• 🔤 语言：go

完整代码

package utils

// ----------------------------------------------------------
// 切片工具函数
// ----------------------------------------------------------

// Contains 检查切片是否包含元素
func Contains[T comparable](slice []T, item T) bool {
	for _, v := range slice {
		if v == item {
			return true
		}
	}
	return false
}

// Filter 过滤切片
func Filter[T any](slice []T, predicate func(T) bool) []T {
	result := make([]T, 0)
	for _, v := range slice {
		if predicate(v) {
			result = append(result, v)
		}
	}
	return result
}

// Map 映射切片
func Map[T, U any](slice []T, mapper func(T) U) []U {
	result := make([]U, len(slice))
	for i, v := range slice {
		result[i] = mapper(v)
	}
	return result
}

// Reduce 归约切片
func Reduce[T, U any](slice []T, initial U, reducer func(U, T) U) U {
	result := initial
	for _, v := range slice {
		result = reducer(result, v)
	}
	return result
}

// Unique 去重
func Unique[T comparable](slice []T) []T {
	seen := make(map[T]bool)
	result := make([]T, 0)
	for _, v := range slice {
		if !seen[v] {
			seen[v] = true
			result = append(result, v)
		}
	}
	return result
}