Modifying & Converting

Add, remove and reshape keys, or convert the object to another type.

.insert(key, value) - mutates

Sets key to value on the object.

.delete(key) - mutates

Removes key from the object.

object o = { a: 1 }
void o.insert("b", 2)  // o is now {a: 1, b: 2}
void o.delete("a")     // o is now {b: 2}

.omit(...keys) → object

A copy of the object without the named keys.

.pick(...keys) → object

A copy of the object containing only the named keys.

object o = { a: 1, b: 2, c: 3 }
log o.omit("a")  // {b: 2, c: 3}
log o.pick("a")  // {a: 1}

.flip() → object

Swaps keys and values.

log { a: 1, b: 2 }.flip()  // {"1": "a", "2": "b"}

.clone() → object

An independent deep copy. (Plain = shares a reference.)

.toMap() → map

Converts to an insertion-ordered map.

.toStr() → string

Serialises the object to a JSON string.

log { a: 1, b: 2 }.toStr()  // {"a":1,"b":2}