typescript - How to bind Arrays in angular between components? -


problem

i have 2 child-components , 1 parent component. first child simple list of tasks, second map points showing whole project(project have list of tasks), have lots of interactions points on map, , need bind array of tasks between components.

main component

html:

<app-tasks-list [(taskslist)]="project.tasks"></app-tasks-list> <app-map [project]="project" (onaddtaskmodalclose)="addtasktolist($event)"></app-map>

ts: in typescript file handle onaddtaskmodalclose() event , getting project http.

first child component (list)

export class taskslistcomponent implements oninit {   @output() ontaskschange: eventemitter<projecttask[]>;   @input()   taskslist() {     return this.tasks   }    set taskslist(taskslist: projecttask[]) {     this.tasks = taskslist;     this.ontaskschange.emit(this.tasks)   }   private tasks: array<projecttask> = []; }

in html i'm using taskslist getter displaying data, projecttask huge model, , im changing 1 of values nested inside, doesn't fire setter (but other next problem).

second component (map)

this pretty simple component. map illustrate whole project , of points, , can add task component.

so need solution passing project.tasks 1 component (task-list-component using in couple of places in app) , when change values of tasks there, need show changes on map instantly. there simple way this?


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