Function handlePaths

dash/dash-renderer/src/observers/executedCallbacks.ts:144–189

(
                            children: any,
                            oldChildren: any,
                            oldChildrenPath: any[],
                            filterRoot: any = false
                        )

                        );

                        const handlePaths = (
                            children: any,
                            oldChildren: any,
                            oldChildrenPath: any[],
                            filterRoot: any = false
                        ) => {
                            const oPaths = getState().paths;
                            const paths = computePaths(
                                children,
                                oldChildrenPath,
                                oPaths
                            );
                            dispatch(setPaths(paths));

                            // Get callbacks for new layout (w/ execution group)
                            requestedCallbacks = concat(
                                requestedCallbacks,
                                getLayoutCallbacks(graphs, paths, children, {
                                    chunkPath: oldChildrenPath,
                                    filterRoot
                                }).map(rcb => ({
                                    ...rcb,
                                    predecessors
                                }))
                            );

                            // Wildcard callbacks with array inputs (ALL / ALLSMALLER) need to trigger
                            // even due to the deletion of components
                            requestedCallbacks = concat(
                                requestedCallbacks,
                                getLayoutCallbacks(
                                    graphs,
                                    oldPaths,
                                    oldChildren,
                                    {
                                        removedArrayInputsOnly: true,
                                        newPaths: paths,
                                        chunkPath: oldChildrenPath,
                                        filterRoot
                                    }
                                ).map(rcb => ({
                                    ...rcb,
                                    predecessors
                                }))
                            );
                        };

                        let recomputed = false;