Yaffle/EventSource

Getting Types error while using it in import [Angular] TS

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#190 opened on Aug 23, 2021

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help wanted

Description

Could not find a declaration file for module 'event-source-polyfill'. '../node_modules/event-source-polyfill/src/eventsource.js' implicitly has an 'any' type. Try npm i --save-dev @types/event-source-polyfill if it exists or add a new declaration (.d.ts) file containing declare module 'event-source-polyfill';ts(7016)

import { NativeEventSource, EventSourcePolyfill } from 'event-source-polyfill';

Contributor guide

Tech stack
javascripttypescriptangular
Domain
frontenddeveloper experience
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScriptnpmmodule declaration files
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85
Research direction
Investigate the current TypeScript support in the repository. Check if a declaration file exists or if @types/event source polyfill is available. If not, create a minimal .d.ts file that declares the module 'event source polyfill' with proper exports for NativeEventSource and EventSourcePolyfill. The error occurs when importing from 'event source polyfill', so the fix is to add a declaration file (e.g., eventsource.d.ts) at the package root or within the src folder, or install existing types from DefinitelyTyped.
Getting Types error while using it in import [Angular] TS · Yaffle/EventSource#190 | Good First Issue