Go Concepts - Operators

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External

Internal

+

Addition or concatenation. The compiler figures out the semantics based on the operands' types.

Applies to:

-

Subtraction

*

Multiplication

/

Division

%

Remainder

=

The assignment operator.

+=

Addition and assignment.

==

The equality operator. Returns a boolean value.

[]

"[]" is the indexing operator. If the index is out of bounds, the runtime generates a run-time panic:

panic: runtime error: index out of range

Applies to:

:=

Variable declaration and assignment. Also known as short variable declaration operator.

<-

Reference and Dereference Operators

Define * and &.

Also see pointers.