Reference

Map

Constructor

Input	A list of pairs separated by comma.
Output	A map containing all the pairs.

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Example

Index

Input	A map and a key.
Output	The value associated with the key.

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Example

At

Input	A map and a hashable key.
Output	The value associated with the key.

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Example

Keys

Input	A map.
Output	A list containing all the keys.

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Example

Values

Input	A map.
Output	A list containing all the values.

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Entries

Input	A map.
Output	A list of key-value pairs as two-element lists.

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Example

Set

Input	A map, a hashable key, and a value.
Output	A new map containing the new key-value pair.

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Example

Merge

Input	Two maps.
Output	A new map containing all key-value pairs from both maps. When both maps contain the same key, the value from the second map takes precedence.

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Example

Remove at

Input	A map and a hashable key.
Output	A new map with the key removed.

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Example

Contains key

Input	A map and a hashable key.
Output	True if the key is in the map, false otherwise.

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Is empty

Input	A map.
Output	True if the map is empty, false otherwise.

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Is not empty

Input	A map.
Output	True if the map is not empty, false otherwise.

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Length

Input	A map.
Output	The number of key-value pairs in the map.

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Example