item_collections.go

package main

func (c Items) Len() int {
	return len(c)
}
func (c Items) Swap(i, j int) {
	c[i], c[j] = c[j], c[i]
}
func (c Items) All(fn func(*Item) bool) bool {
	for _, v := range c {
		if !fn(v) {
			return false
		}
	}
	return true
}
func (c Items) Any(fn func(*Item) bool) bool {
	for _, v := range c {
		if fn(v) {
			return true
		}
	}
	return false
}
func (c Items) Count(fn func(*Item) bool) int {
	count := 0
	for _, v := range c {
		if fn(v) {
			count += 1
		}
	}
	return count
}
func (c Items) Each(fn func(*Item)) {
	for _, v := range c {
		fn(v)
	}
}
func (c Items) First(fn func(*Item) bool) *Item {
	for _, v := range c {
		if fn(v) {
			return v
		}
	}
	return nil
}
func (c Items) Where(fn func(*Item) bool) (result Items) {
	for _, v := range c {
		if fn(v) {
			result = append(result, v)
		}
	}
	return result
}