list

Lists are ordered and mutable. You can append, remove, or index elements.

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Creating lists

// Examples:
var l = [1, 2, "Hello", null];
var empty = [];

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Properties

Property	Description	Example
.length	Returns the number of elements	[1, 3, 6].length → 3

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Methods

Method	Description	Example
append(o)	Adds an object to the list	l.add("Hi") → [..., "Hi"]
pop(idx)	Removes and returns the object at index idx	l.pop(1) → 2
contains(o)	Checks whether the object o is in the list	l.contains(10) → false

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Indexing

var l = [1, 2, "Hello", null];
var second = l[1];
l[3] = -20;

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Comparison

var l1 = [20, 30];
var l2 = [];

l1 == l2;   // false
l1 == l1;   // true
l2 == l2;   // true

// Non empty list → true
if(l1) {

}

// Empty list → false
if(l2) {

}