[Typings] Not compatible with `strict` compilerOptions

[DrSensor]

Expected behavior

No error when using typescript with configuration complerOptions.strict and tslint:recommended enable.

Actual behavior

ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
164:5 'preventDefault', which lacks return-type annotation, implicitly has an 'any' return type.
    162 |     relatedTarget: DOMElement
    163 |     currentTarget: DOMElement
  > 164 |     preventDefault ()
        |     ^
    165 |     pageX: number
    166 |     pageY: number
    167 |     clientX: number
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
276:5 'test', which lacks return-type annotation, implicitly has an 'any' return type.
    274 |     styleCursor ( yesno: boolean ) : Interactable
    275 |     createSnapGrid ( opt: { x: number, y: number, range: number, offset: Position } ) : SnapFunction
  > 276 |     test ( x : SnapFunction )
        |     ^
    277 |   }
    278 |
    279 |   interface InteractOptions {
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
291:13 Parameter 'any' implicitly has an 'any' type.
    289 |     pointerMoveTolerance ( tol?: number ) : number | InteractStatic
    290 |     // TODO
  > 291 |     isSet ( any ) : any
        |             ^
    292 |     off ( any ) : any
    293 |     debug ( any ) : any
    294 |     addDocument ( any ) : any
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
292:11 Parameter 'any' implicitly has an 'any' type.
    290 |     // TODO
    291 |     isSet ( any ) : any
  > 292 |     off ( any ) : any
        |           ^
    293 |     debug ( any ) : any
    294 |     addDocument ( any ) : any
    295 |     removeDocument ( any ) : any
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
293:13 Parameter 'any' implicitly has an 'any' type.
    291 |     isSet ( any ) : any
    292 |     off ( any ) : any
  > 293 |     debug ( any ) : any
        |             ^
    294 |     addDocument ( any ) : any
    295 |     removeDocument ( any ) : any
    296 |   }
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
294:19 Parameter 'any' implicitly has an 'any' type.
    292 |     off ( any ) : any
    293 |     debug ( any ) : any
  > 294 |     addDocument ( any ) : any
        |                   ^
    295 |     removeDocument ( any ) : any
    296 |   }
    297 | }
ERROR in /home/wildan/Projects/Sensorfied/EDI/edi-ui/node_modules/interactjs/index.d.ts
295:22 Parameter 'any' implicitly has an 'any' type.
    293 |     debug ( any ) : any
    294 |     addDocument ( any ) : any
  > 295 |     removeDocument ( any ) : any
        |                      ^
    296 |   }
    297 | }
    298 |

Suggestion

For just temporary, I suggest any PR involving typescript should be accepted by default until there is a smoke test for supporting typescript.

System configuration

interact.js version: 1.3.3
Browser name and version: Google Chrome Version 64.0.3282.186 (Official Build) (64-bit)
Operating System: Ubuntu 16.04

[bencoveney]

👍 same issue.

We recommend all declaration files be compiled with --strict to ensure they do adhere to the strictest possible settings.

microsoft/TypeScript#18974

However that also says the skiplibcheck flag can be used as a workaround.

[tundebabzy]

Same issue to. However --skiplibcheck seems like an all or nothing fix. I think its best to try to open a PR to fix the problem. I hope it is merged and released ASAP though

[burtonator]

Same issue..

[taye]

I'm translating the project to typescript so, with some help, this should be resolved soon.

[burtonator]

Nice. For what it's worth I did a huge migration with Polar:

https://getpolarized.io/

... and it was a massive help! I think you'll find a huge productivity win here.

[taye]

The migration is done. Please update to version 1.4.0-alpha.23.

npm install interactjs@next
npm install --save-dev @interactjs/types@next

[terrymun]

@taye Thanks for releasing the types for the plugin! However, it seems like doing import interact from 'interactjs'; no longer exposes the internal types for the plugin anymore.

In the root index.d.ts, import '@interactjs/types doesn't import anything, because the types/index.d.ts only contains a reference and doesn't export any types. I might be misunderstanding TypeScript type declarations here, so please correct me if I'm wrong.

In order to get all the typings for the plugin, I will have to import the types manually, i.e.:

import interact from 'interactjs';
import { InteractEvent } from '@interactjs/types/types';

So that I can do something like this:

interact(element).draggable({
  onstart: onPanStart
});

function onPanStart(InteractEvent): void {
  // Do something
}

[taye]

@terrymun The Interact namespace is exposed globally so you should be able to use Interact.IteractEvent