Using Maps in JavaScript

Creating a new map

^{create myMap;}

^{let myMap = new Base_Components_Basic_Behavior_Map_Map();}

Building a map from an array

^{set myMap = myArray.buildMap("name");}

See buildMap() Operation in Map Context.

let myMap = new Base_Components_Basic_Behavior_Map_Map(myArray, "name");

Building a map from an array:

let header = new Base_Components_Basic_Behavior_Map_Entry();
entry1.name = 'key1';
entry1.value = 'value1';
 
let entry2 = new Base_Components_Basic_Behavior_Map_Entry();
entry2.name = 'key2';
entry2.value = 'value2';
 
let myArray = new Array();
myArray.push(entry1);
myArray.push(entry2);
 
let myMap = new Base_Components_Basic_Behavior_Map_Map(myArray, "name");

Retrieving an item from a map

^{set anObject = myMap.getMapValue("my key");}

See getMapValue() Operation.

^{let value = myMap.getEntry('my key');}

Getting map entries

^{set anArray = myMap.getMapEntries();}

See getMapEntries() Operation.

^{let mapEntries = myMap.getEntries();
let entryValue = mapEntries[0].value;}

Adding a new element to a map

^{set anObject = myMap.setMapValue("my key", "my value");}

• All simple types except Blob can be used as a key for the map.

• All values are allowed, except arrays and anonymous objects.

See setMapValue() Operation.

^{myMap.setEntry('my key', 'my value');}

Removing an item from a map

^{set deletedObject = myMap.removeMapValue("my key");}

See removeMapValue() Operation.

^{let removed = myMap.removeEntry('my key');}