ee.Feature.length

Returns the length of the linear parts of the geometry of a given feature. Polygonal parts are ignored. The length of multi geometries is the sum of the lengths of their components.

UsageReturns
Feature.length(maxError, proj)Float
ArgumentTypeDetails
this: featureElementThe feature from which the geometry is taken.
maxErrorErrorMargin, default: nullThe maximum amount of error tolerated when performing any necessary reprojection.
projProjection, default: nullIf specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in meters.