README
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Maps - Arrays, Slices and Maps
Maps provide a data structure that allow for the storage and management of key/value pair data.
Notes
- Maps provide a way to store and retrieve key/value pairs.
- The map key must be a value that can be used in an assignment statement.
- Iterating over a map is always random.
Links
http://blog.golang.org/go-maps-in-action
http://www.goinggo.net/2013/12/macro-view-of-map-internals-in-go.html
Code Review
Declare, initialize and iterate (Go Playground)
Map literal initialization (Go Playground)
Map key restrictions (Go Playground)
Advanced Code Review
Composing maps of maps (Go Playground)
Exercises
Exercise 1
Declare and make a map of integer values with a string as the key. Populate the map with five values and iterate over the map to display the key/value pairs.
Template (Go Playground) | Answer (Go Playground)
All material is licensed under the Apache License Version 2.0, January 2004.
Directories
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advanced
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example1
Sample program to show how to compose maps of maps.
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Sample program to show how to compose maps of maps. |
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Sample program to show how to declare, initialize and iterate over a map.
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Sample program to show how to declare, initialize and iterate over a map. |
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Sample program to show how to declare and initialize a map using a map literal.
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Sample program to show how to declare and initialize a map using a map literal. |
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Sample program to show how only types that can have equality defined on them can be a map key.
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Sample program to show how only types that can have equality defined on them can be a map key. |
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exercises
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exercise1
Declare and make a map of integer values with a string as the key.
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Declare and make a map of integer values with a string as the key. |
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template1
Declare and make a map of integer values with a string as the key.
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Declare and make a map of integer values with a string as the key. |
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