Cannot create squareGrid from FeatureCollection

[adkalkan]

I'm using turf alongside mapbox.

squareGrid's definition reads:

Creates a square grid from a bounding box, Feature or FeatureCollection.

yet whenever I input a Feature collection, the error I get is:

bbox must be array.

Here is some sample code:

var locationA = turf.point([-75.343, 39.984], {edx: 5.1});
var locationB = turf.point([-75.833, 39.284], {edx: 45.4});
var locationC = turf.point([-75.534, 39.123], {edx: -11.1});

var collection = turf.featureCollection([locationA,locationB,locationC]);
var squareGrid = turf.squareGrid(collection, 25, /*options*/);

What am I missing here? I would like to create a square grid from a feature collection that has points with properties, and paint the grid cells according to the property value.
Is my way of thinking wrong?

[stebogit]

@adkalkan you are right, the documentation is incorrect. squareGrid only accepts a bbox array.