Golang-Design-Patterns

Notes:

• If you encounter a & prefix to a variable, it indicates the creation of a new pointer to that variable's location in memory.
  • In Go, the & is the address-of operator, which returns the memory address of a variable

x := 10
p := &x // p now holds the memory address of x

• If you encounter a * prefix to a variable, it indicates the use of a pointer to access the value it points to.
• When used in an expression (e.g., *p), it retrieves the value stored at the address the pointer holds.
• When used in a type declaration (e.g., var p *int), it indicates that the variable is a pointer to that type.
  • In Go, the * is the dereference operator, which returns the value stored at the memory address pointed to by a pointer.

x := 10
p := &x
fmt.Println(*p) // prints 10
*p = 20         // updates x through the pointer

• To run: go run ./cmd/web

  • To make use of template cache: go run ./cmd/web -use-cache

• Visit: http://localhost:4000/

• go test -v -count=1 . (Run tests without a cache)

• go test -v .