Skip to main content


Returns an object resulting from extracting the given actualKey from the input and storing it as the desiredKey in the output.


const $mapped = remapKeys(

// Take the `first_name` and `id` properties of the original object, and
// return a new object where these are stored into the `name` and `row_id`
// properties respectively.
name: "first_name",
row_id: "id",

This step is particularly useful during the optimize phase, if your step manages to inline itself into an ancestor then likely it will need to transform the ancestor in order to return something equivalent to what it would have been without this optimization.

TODO: this tip is poorly worded.