typescript object Property 'map' does not exist on type code example

Example 1: Property 'map' does not exist on type 'Observable'.ts(2339) typescript by Outrageous Octopus on Feb 05 2021 Donate 0 const request = this.evidenceService.get().pipe( map((res) => res.data)), catchError(error => Observable.of(null)) ); Source: stackoverflow.com property 'map' does not exist on type 'object' whatever by Bad Buzzard on Oct 10 2020 Donate 0 if (myStructure instanceof Array) { myStructure.map((val, idx, []) => { }); } Source: stackoverflow.com Add a Grepper Answer TypeScript answers related to “typescript object Property 'map' does not exist on type” 'push' does not exist on type 'Observable' check if key exists in json typescript property 'do' does not exist on type 'observable>'. angular 9 property 'length' does not exist on type 'T' Property 'of' does not exist on type 'typeof Observable'. Property 'orderBy' does not exist on type 'AngularFirestoreCollection Property 'value' does not exist on type 'EventTarget & Element'. Property 'value' does not exist on type 'HTMLElement'. typescript add property if not exist, merge if it exists TypeScript queries related to “typescript object Property 'map' does not exist on type” angular Property 'map' does not exist on type 'Observable