set

Documentation

Overview

Package set Set Data Structure based on map and sync.RWMutex

Index

• type Set
  • func New() *Set
  • func (s *Set) Add(item interface{})
  • func (s *Set) Clear()
  • func (s *Set) Each(fn func(interface{}))
  • func (s *Set) Has(item interface{}) bool
  • func (s *Set) IsEmpty() bool
  • func (s *Set) Len() int
  • func (s *Set) List() []interface{}
  • func (s *Set) Remove(item interface{})

Examples

• Set

Types

type Set

type Set struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Set safe map

Example

package main

import (
	"fmt"

	"github.com/upyun/utilgo/set"
)

func main() {
	s := set.New()
	s.Add(1)
	s.Add(2)
	s.Add(3)
	s.Remove(2)
	fmt.Println(s.Len())
	fmt.Println(s.Has(1))
	fmt.Println(s.Has(2))
	fmt.Println(s.Has(3))
}

Output:

2
true
false
true

func New

func New() *Set

New new set

func (*Set) Add

func (s *Set) Add(item interface{})

Add add

func (*Set) Clear

func (s *Set) Clear()

Clear removes all items from the set

func (*Set) Each

func (s *Set) Each(fn func(interface{}))

Each call fn on each element in the Set

func (*Set) Has

func (s *Set) Has(item interface{}) bool

Has looks for the existence of an item

func (*Set) IsEmpty

func (s *Set) IsEmpty() bool

IsEmpty checks for emptiness

func (*Set) Len

func (s *Set) Len() int

Len returns the number of items in a set.

func (*Set) List

func (s *Set) List() []interface{}

List Set returns a slice of all items

func (*Set) Remove

func (s *Set) Remove(item interface{})

Remove deletes the specified item from the map