Add "NUM_FRACTION_DIGITS" as a static property on Object class. (#42004)

types/fabric/fabric-impl.d.ts

@@ -3938,6 +3938,10 @@ export class Object {
 	 * @return {fabric.Object}
 	 */
 	static _fromObject(className: string, object: Object, callback?: Function, extraParam?: any): Object;
+	/**
+	 * Defines the number of fraction digits to use when serializing object values.
+	 */
+	static NUM_FRACTION_DIGITS?: number;
 }
 
 interface IPathOptions extends IObjectOptions {

types/fabric/test/index.ts

@@ -48,6 +48,8 @@ function sample2() {
   const rainbow = ["#ffcc66", "#ccff66", "#66ccff", "#ff6fcf", "#ff6666"];
   const rainbowEnd = rainbow.length - 1;
 
+  fabric.Object.NUM_FRACTION_DIGITS = 2;
+
   //
   // Rendering canvas #1
   //