buildMap() Operation

Builds a map from an array.

Syntax	`anArray.buildMap("aKeyName")`
Semantics	Builds a map from an array. The operation returns a value of type Map.
Substitutables	`anArray`	Can be any variable or object attribute having the type Array and having array elements of complex type.
Substitutables	`aKeyName`	Name of the key attribute of the complex type in double quotes.
Examples	Input: an array of articles JSON `{ "articles": [ {"name": "AF-1200", "category": "Adapter", "serviceInterval": 52}, {"name": "CD-2024", "category": "Connector", "serviceInterval": 208}, {"name": "RC-0002", "category": "Adapter", "serviceInterval": 104} ]}` CODE `create hashMap; set hashMap = articles.buildMap("name");` Result: JSON `{ "hashMap": { "AF-1200": { "category": "Adapter", "serviceInterval": 52 }, "CD-2024": { "category": "Connector", "serviceInterval": 208 }, "RC-0002" { "category": "Adapter", "serviceInterval": 104 } } }`

buildMap() is a convenient method, if you need a map indexing an array.

Searching for items using a map key (name in the example above) is much faster than performing a select on the array. You should use a map if you need to search an array more than a couple of times.

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