typescript >= 3 support

[AndrewK15]

I'm getting these errors when trying to use amchartsv4 (4.0.0-beta.55) in angular7.rc0 + typescript 3.1.1.

Does it mean amcharts do not support typescript v3 at the moment and I should downgrade?

ERROR in node_modules/@amcharts/amcharts4/.internal/charts/elements/NavigationBar.d.ts(171,5): error TS2416: Property 'validateDataElement' in type 'NavigationBar' is not assignable to the same property in base type 'Component'.
  Type '(dataItem: NavigationBarDataItem) => void' is not assignable to type '(dataItem: this["_dataItem"]) => void'.
    Types of parameters 'dataItem' and 'dataItem' are incompatible.
      Type 'this["_dataItem"]' is not assignable to type 'NavigationBarDataItem'.
        Type 'DataItem' is not assignable to type 'NavigationBarDataItem'.
          Property 'name' is missing in type 'DataItem'.
node_modules/@amcharts/amcharts4/.internal/charts/types/ChordDiagram.d.ts(190,5): error TS2416: Property 'links' in type 'ChordDiagram' is not assignable to the same property in base type 'FlowDiagram'.
  Type 'ListTemplate<ChordLink>' is not assignable to type 'ListTemplate<this["_link"]>'.
    Type 'ChordLink' is not assignable to type 'this["_link"]'.
      Type 'ChordLink' is not assignable to type 'FlowDiagramLink'.
        Types of property 'copyFrom' are incompatible.
          Type '(source: ChordLink) => void' is not assignable to type '(source: this["_link"]) => void'.
            Types of parameters 'source' and 'source' are incompatible.
              Type 'this["_link"]' is not assignable to type 'ChordLink'.
                Type 'FlowDiagramLink' is not assignable to type 'ChordLink'.
                  Property 'radius' is missing in type 'FlowDiagramLink'.
node_modules/@amcharts/amcharts4/.internal/charts/types/SankeyDiagram.d.ts(162,5): error TS2416: Property 'links' in type 'SankeyDiagram' is not assignable to the same property in base type 'FlowDiagram'.
  Type 'ListTemplate<SankeyLink>' is not assignable to type 'ListTemplate<this["_link"]>'.
    Type 'SankeyLink' is not assignable to type 'this["_link"]'.
      Type 'SankeyLink' is not assignable to type 'FlowDiagramLink'.
        Types of property 'copyFrom' are incompatible.
          Type '(source: SankeyLink) => void' is not assignable to type '(source: this["_link"]) => void'.
            Types of parameters 'source' and 'source' are incompatible.
              Type 'this["_link"]' is not assignable to type 'SankeyLink'.
                Type 'FlowDiagramLink' is not assignable to type 'SankeyLink'.
                  Property 'startX' is missing in type 'FlowDiagramLink'.

[Pauan]

@AndrewK15 TypeScript 3.0 has a bunch of breaking changes. We're working on making AmCharts 4 compatible with TypeScript 3.0, but in the meantime we recommend downgrading to 2.x

[eliashdezr]

@Pauan any news on this?

[erichstark]

Today I also upgraded to angular 7 and typescript 3.1.3. With amcharts 4.0.0-beta.63 problem still exists.

[billfranklin]

can confirm @erichstark, have the same problem

[Pauan]

While working on TypeScript 3.0 support, we noticed that TypeScript 3.0 causes major slowdowns for compile times. We're working on creating a reduced test case so we can submit it to the TypeScript dev team.

[billfranklin]

@Pauan do you have an estimated timeframe on when the compile issues will be fixed, irrespective of the slowdown issue?

[dellax]

Temporary solution:
add "skipLibCheck": true to tsconfig.json

[Pauan]

@billfranklin We've already fixed all the issues, but we can't release it until the major slowdown is fixed.

@dellax That's great! It must be a new option, I don't remember it existing before.

[billfranklin]

@Pauan did the update from 4 days ago fix this? It seems it might be related to slowdown issues in projects with many source files microsoft/TypeScript#28025

[billfranklin]

@dellax genius!

[Pauan]

@billfranklin Unfortunately, I don't think it fixed it. However, I submitted a bug report to the TypeScript team and they're looking into it.

[billfranklin]

@Pauan, at least they have a workaround from the looks of it?

[weswigham]

Yeah, there's a workaround posted in the thread and a fix committed to master that'll ship in 3.2.

[DanielRosenwasser]

Check out TypeScript 3.1.6 for the fix.

[DanielRosenwasser]

Sorry, not 3.1.6; someone linked to a separate issue which is addresed in 3.1.6.

[Pauan]

Good news! The next release of AmCharts will include TypeScript 3.0 support. We hope to have it out by tomorrow, but we can't promise that.

[martynasma]

Fixed in 4.0.0-beta.72.

[4.0.0-beta.72] - 2018-11-03

Changed

• For any XYSeries if the itemReaderText is not set explicitly, it will automatically try to fill with values from dataFields, so that each series element, like a Column has at least rudimentary screen-reader text.

Fixed

• Added in TypeScript 3.x support.
• ColumnSeries with two category axes anomaly fixed.

Full change log.

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