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Like other person, we have our own toolkit. Programmer are similar to mathematician and magician. Why? Because Programmer play with logic , numbers . Magician play with your brain and mathematician like us numbers and logic. We start our show in a moment.

 bool :  In golang only true and false are allowed. if you use 0 for true and 1 for false or vice                     versa then you have to convert into before play.
 string : In golang string as literal commonly used.
                var s string = "hello"
                   s := "hello"
                 both are valid cases.
 rune : What's is that? Golang provide you new data type for utf8 or unicode data. Rune                    data  also called unicode. You know other languages are not supported by                              computer.  Sometime we need a key that represent a word in any language. With                   the   help of Unicode you can write dozens of words in any language. More                             information  check Unicode Officials   Site. If we want manipulation on the data, first               we need to  convert into numbers or strings   or byte. Go files follow UTF8-Scheme.
          

Golang have few interesting properties 
       1.   At least more than one variables assign values in one time.
               var x int = 1
              var a, b int , int = 0,1
              var c, d int , float64 = 3, 3.44
        2.  Swaps data without extra memory
              var x,y = 3,4
               x,y = y,x
         3. Golang compilation speed much faster than other languages.
         4. Golang commonly used in microservices. 

Constants
Generally const are special kind of variables which value remain constant throughout our program. const pi = 3.14
                const (
           height = 1024
            width = 724
        )
In golang constant are in two types one called untyped constants and type constants
Untyped Constants
      Constants are very much powerful in golang language. Untyped Constants are good choice for numerical problems.
           var f float64 = float64(3.3)
         fmt.Println(f)
         f = float64('a')
        fmt.Println(f)
Short name also categorize in this type because compiler assign type based on value.
         i := 3 // untyped variable not constant
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