Method getField documentation
Returns the value of the given field (property) from the first object matching the given filter in an array of objects.
Example
```javascript
let ar = [
{name: "Raiders of the lost ark", director: "Steven Spielberg", year: 1981, id: 589},
{name: "Goonies", director: "Richard Donner", year: 1985, id: 689},
{name: "Star wars", director: "George Lucas", year: 1977, id: 256},
{name: "Jaws", director: "Steven Spielberg", year: 1975, id: 423}
];
bbn.fn.getField(ar, "name", {id: 256});
// Star wars
bbn.fn.getField(ar, "name", "id", 689);
// Goonies
```
Returns the value of the given field (property) from the first object matching the given filter in an array of objects. - The filtering arguments follow the same scheme as bbn.fn.search.
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