Does not work with TypeScript v3

[hen42]

Hi Guys,

the types in demo-snippet.d.ts are incompatible with TypeScript vesion 3-

package.jon:
@polymer/iron-demo-helpers": "^3.0.2",
"typescript": "^3.1.3",

Output from TypeScript:

/node_modules/@polymer/iron-demo-helpers/demo-snippet.d.ts(51,11): error TS2320: Interface 'DemoSnippetElement'cannot simultaneously extend types 'LegacyElementMixin' and 'HTMLElement'.

Named property 'toggleAttribute' of types 'LegacyElementMixin' and 'HTMLElement' are not identical.

Best Regards

[ffendt]

Hi @hen42,

better late than never: using polymer "^3.2.0" will fix this issue, see polymer Issue 5372.

Regards

[hen42]

Thanks. :)