Variables

var a int // declare variables and set to zero values

a := 10 // declare and initialize ( type is automatically detected by Go )

/*
Common Data Types in Go:

int, uint, bool, string, rune, float, chan ( channel ), 
nil (Zero value for pointers, interfaces, slices, channels, functions and maps.)

*/

Go is zero valued

• If we declare something in Go, it will always be initalized it to zero values.

Strings in Go

• A string is a sequency of byte[ ].
• Strings can be converted to and from []byte using []byte(string) and string([]byte), enabling low-level manipulation. For more complex conversions (e.g., string to int), the strconv package is used.

Type Conversion

• In Go, we do type conversion over type casting which is much more safer and creates much less bugs. This basically means we copy the data from one type to another so that no data is lost.
• Go also requires explicit type conversion.

var y float64 = x // This will cause an error
var y float64 = float64(x) // Explicit conversion required

Structs

Structs are basically user defined types or custom types.