Takes a bounding box and calculates the minimum square bounding box that would contain the input.

• bbox BBox extent in [west, south, east, north] order

var bbox = [-20, -20, -15, 0];
var squared = turf.square(bbox);

//addToMap
var addToMap = [turf.bboxPolygon(bbox), turf.bboxPolygon(squared)]

Returns BBox a square surrounding bbox

This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Install this single module individually:

$ npm install @turf/square

Or install the all-encompassing @turf/turf module that includes all modules as functions:

$ npm install @turf/turf