mapKeys

mapKeys(map map) → array keys

Returns a list containing all the keys of the map map.

mapKeys([:]) // []

[...new Map().keys()]; // []

list({}.keys())  # []

var table = [1: 'a', 2: 'b', 3: 'c']
mapKeys(table) // [1, 2, 3]

const table = new Map([ [1, 'a'], [2, 'b'], [3, 'c'] ]);
[...table.keys()]; // [1, 2, 3]

table = {1: 'a', 2: 'b', 3: 'c'}
list(table.keys())  # [1, 2, 3]

var table = ['a': 1, 'b': 2, 'c': 3]
mapKeys(table) // ["a", "b", "c"]

const table = new Map([ ['a', 1], ['b', 2], ['c', 3] ]);
[...table.keys()]; // ["a", "b", "c"]

table = {'a': 1, 'b': 2, 'c': 3}
list(table.keys())  # ['a', 'b', 'c']