#2974 converted the line-offset package to typescript, but the generated return type of the function is not the same as previously and causes compilation errors in projects using it.
The function signature was previously:
declare function lineOffset<T extends LineString | MultiLineString>(
line: Feature<T> | T,
distance: number,
options?: {
units?: Units;
}
): Feature<T>;
Which preserved the LineString or MultiLineString type of the feature in parameter.
But now it is:
declare function lineOffset<T extends LineString | MultiLineString>(geojson: Feature<T> | T, distance: number, options?: {
units?: Units;
}): Feature<LineString, {
[name: string]: any;
} | null> | Feature<MultiLineString, {
[name: string]: any;
} | null>;
So when passing a LineString, the return value is not necessarily a LineString anymore.
#2974 converted the line-offset package to typescript, but the generated return type of the function is not the same as previously and causes compilation errors in projects using it.
The function signature was previously:
Which preserved the LineString or MultiLineString type of the feature in parameter.
But now it is:
So when passing a LineString, the return value is not necessarily a LineString anymore.