mw.Map

ES3-compatible class similar to ES6 Map.

Example

const map = new mw.Map();
map.set( 'foo', 5 );
alert( 5 === map.get( 'foo' ) );

Constructor

new mw.Map() #

Create an object that can be read from or written to via methods that allow interaction both with single and multiple properties at once.

Source:

Methods

exists(selection) → {boolean}static #

Check if a given key exists in the map.

Parameters:

Name Type Description
selection string

Key to check
Source:

Returns:

True if the key exists

Type
boolean
Check if a given key exists in the map.

get(selection, fallback) → {any|Object|null}static #

Get the value of one or more keys.

If called with no arguments, all values are returned.

Parameters:

Name Type Attributes Default Description
selection string | Array optional

Key or array of keys to retrieve values for.
fallback any optional
 null

Value for keys that don't exist.
Source:

Returns:

If selection was a string, returns the value, If selection was an array, returns an object of key/values. If no selection is passed, a new object with all key/values is returned.

Type
any | Object | null
Get the value of one or more keys.

set(selection, value) → {boolean}static #

Set one or more key/value pairs.

Parameters:

Name Type Attributes Description
selection string | Object

Key to set value for, or object mapping keys to values
value any optional

Value to set (optional, only in use when key is a string)
Source:

Returns:

True on success, false on failure

Type
boolean
Set one or more key/value pairs.