What’s a pointer ? In Go , A pointer is a variable whose value is a memory address. A pointer is defined using the ampersand operator. Following a Pointer In order to access ie following the pointer value , Go uses the asterisk operator.

It’s illegal in go to define a variable and not use it.Go will throw unused variable error. However , there are situations when we need to define variable but not necessary use it , such as using one return value of a function over another. In such situation , Go provides a solution called blank identifier. A blank identifier is the use of single underscore operator( _ )