Basic types

bool,

string,

int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, uintptr,

byte, alias for uint8,

rune, alias for int32, represents a Unicode code point

float32, float64,

complex64, complex128

Default values

Type	Default Value
int	0
float	0.0
string	""
bool	false

Define and assign variables

Syntax: var isTeslaGreat bool = false

We use the var keyword, followed by the variable name, then the type. In this case it's a Boolean (bool) keyword. Optionally we can assign a value, which in this case we assign the value false to the variable isTeslaGreat.

Constants

Syntax: const Pi = 3.142

Constants are declared like variables, but with the const keyword.

Constants can be character, string, boolean, or numeric values.

Constants cannot be declared using the := syntax.

Inferred types

Syntax: isTeslaGreat := false

Alternative Syntax: var isTeslaGreat = false

Go can infer types based on the assigned values. floats created this way are float32, ints are either int32 or int64.