Function containsKey

object.go:1220–1229

(
	opChain *chain, obj map[string]interface{}, key string,
)

}

func containsKey(
	opChain *chain, obj map[string]interface{}, key string,
) bool {
	for k := range obj {
		if k == key {
			return true
		}
	}
	return false
}

func containsValue(
	opChain *chain, obj map[string]interface{}, val interface{},