Array.groupBy(key) Last updated: 22. Jul 2024
Groups the items in an array based on the specified property name or function.
Parameters
| Name | Type | Description |
|---|---|---|
| key | string | function | A property name or a function that returns the key to group by. |
Returns
An object where the keys are the group names and the values are arrays of items in those groups.
Example
Code example (JS)
JS is normal JavaScript either running in the browser or on the Docly™ server.const words = ["abcdefg", "efgha", "abc123"];
const groupedByFirstLetter = words.groupBy(word => word[0]);
write(JSON.stringify(groupedByFirstLetter));Output
The JS code above produces the output shown below:{"a":["abcdefg","abc123"],"e":["efgha"]}