Keys, Values & Membership

Read the contents of an object. None of these mutate.

.getKeys() → array

The object's keys.

.getValues() → array

The object's values.

.getEntries() → array

The object as an array of [key, value] pairs.

.contains(key) → boolean

Whether the object has the given key.

object o = { a: 1, b: 2 }
log o.getKeys()      // ["a", "b"]
log o.getValues()    // [1, 2]
log o.getEntries()   // [["a", 1], ["b", 2]]
log o.contains("a")  // true

Read a single value with index syntax (o["a"] or o.a) or .item(key). The inverse of .getEntries() is the array method .toEntriesObj().