Function fromIterable

fromIterable<V>(
    data: Iterable<V>,
    keyFunction?: (itemToMakeStringFor: V) => string,
    allowOverwrites?: boolean,
): ReadonlyMap<string, V>
import { Maps } from 'https://unpkg.com/ixfx/dist/data.js'; Returns a Map from an iterable. By default throws an exception if iterable contains duplicate values.
```
const data = [
 { fruit: `granny-smith`, family: `apple`, colour: `green` }
 { fruit: `mango`, family: `stone-fruit`, colour: `orange` }
];
const map = Maps.fromIterable(data, v => v.fruit);
```
Type Parameters
- V
Parameters
- data: Iterable<V>
  Input data
- keyFunction: (itemToMakeStringFor: V) => string = ...
  Function which returns a string id. By default uses the JSON value of the object.
  - (itemToMakeStringFor: V): string
    A default converter to string that uses JSON.stringify if its an object, or the thing itself if it's a string
    
    Parameters
    itemToMakeStringFor: V
    Returns string
- allowOverwrites: boolean = false
  When set to true, items with same id will silently overwrite each other, with last write wins. false by default.
Returns ReadonlyMap<string, V>