Go Maps: Difference between revisions
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==Indexing Operator== | ==Indexing Operator== | ||
Indexing operator <tt>[[Go Concepts - Operators#.5B.5D|[]]]</tt> returns the value corresponding to the specified key. If the key does not exist, the zero value for the value type is returned. | Indexing operator <tt>[[Go Concepts - Operators#.5B.5D|[]]]</tt> returns the value corresponding to the specified key. If the key does not exist, the [[Go Concepts - The Type System#Zero_Value|zero value]] for the value type is returned. | ||
Revision as of 02:29, 28 March 2016
Internal
Overview
A map is an unordered collection of key-value pairs.
Declaration
Long Declaration
var map_identifier map[key_type]value_type
Example of a map of string to ints:
var m map[string]int
Short Declaration
Map Operators and Functions
Indexing Operator
Indexing operator [] returns the value corresponding to the specified key. If the key does not exist, the zero value for the value type is returned.