check if two GeoJSON geometries are equal

index.js

function equals(g1,g2) {
    function _equalCoords(c1,c2) {
        if (typeof c1 === 'number')
            return c1===c2;
        else
            if (Array.isArray(c1) && Array.isArray(c2) && c1.length===c2.length)
                return c1.reduce(function(memo, val, index) {
                    return memo && _equalCoords(c1[index], c2[index]);
                }, true);
            else
                return false;
    }
    return g1.type === g2.type && _equalCoords(g1.coordinates, g2.coordinates);
}