API Reference > frontend-devTools > Tools > ViewportTileSizeModifierTool > run run Method This method runs the tool, setting the tile size modifier used for the selected viewport. run(modifier?: number): boolean Parameter Type Description modifier number the tile size modifier to use; if undefined, reset the modifier Returns - boolean Defined in frontend-devtools/src/tools/ViewportTools.ts Line 342 Last Updated: 11 June, 2024