19 lines
1.0 KiB
Plaintext
19 lines
1.0 KiB
Plaintext
var fruit = {} // creates an empty map
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fruit[1] = "orange" // associates a key of 1 with "orange"
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fruit[2] = "apple" // associates a key of 2 with "apple"
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System.print(fruit[1]) // retrieves the value with a key of 1 and prints it out
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fruit.remove(1) // removes the entry with a key of 1 from the map
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System.print(fruit) // prints the rest of the map
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System.print()
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var capitals = { // creates a new map with three entries
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"France": "Paris",
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"Germany": "Berlin",
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"Spain": "Madrid"
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}
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capitals["Russia"] = "Moscow" // adds another entry
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System.print(capitals["France"]) // retrieves the "France" entry and prints out its capital
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capitals.remove("France") // removes the "France" entry
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System.print(capitals) // prints all remaining entries
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System.print(capitals.count) // prints the number of remaining entries
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System.print(capitals["Sweden"]) // prints the entry for Sweden (null as there isn't one)
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