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Go from introduction to actual combat - execute only once (note)

2022-06-27 21:57:00 【Accumulated Ytu】

The singleton pattern

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var (
	once sync.Once
	obj  *SingletonObj
)

type SingletonObj struct {
    
}

func GetSingletonOb() *SingletonObj {
    
	once.Do(func() {
    
		fmt.Println("Create Singleton obj")
		obj = &SingletonObj{
    }
	})
	return obj
}
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https://yzsam.com/2022/178/202206271921592956.html

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