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How to properly import turf on TypeScript?

See original GitHub issue

Hello, I’m stumbled weird error on TypeScript. Despite lint tells me turf.geometry() is a valid function, I get TypeError: Cannot read property 'geometry' of undefined when calling it. Is there anything I can do about it?

tsconfig

"target": "ES2020"
"module": "commonjs"
"lib": ["ES2020"]

example

// Error
import turf from '@turf/turf';
turf.geometry('Point', [20, 20])

// Safe
import { geometry } from '@turf/helpers';
geometry('Point', [20, 20])

Issue Analytics

State:
Created a year ago
Comments:5

Top GitHub Comments

2reactions

robinsummerhillcommented, Aug 4, 2022

@turf/turf does not have a default export so import turf from '@turf/turf'; is incorrect. You should do this instead import * as turf from '@turf/turf';. Then you can access all the turf functions like: turf.geometry, turf.point etc.

1reaction

tmcwcommented, Nov 9, 2022

I think this is already shown in the docs: http://turfjs.org/getting-started - there’s an example of importing all of turf using * as turf.

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