Add FormDataEvent

[naokikimura]

TypeScript Version: Nightly

Search Terms:

• FormDataEvent
• HTMLFormElement: formdata event
• GlobalEventHandlers.onformdata

Expected behavior:

No errors. Behave as specified by WHATWG.

• https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-formdataevent-interface

Actual behavior:

Error Cannot find name 'FormDataEvent'.(2304)

Related Issues:

Code

let e: FormDataEvent;

Output

"use strict";
let e;

Compiler Options

{
  "compilerOptions": {
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "strictBindCallApply": true,
    "noImplicitThis": true,
    "noImplicitReturns": true,
    "useDefineForClassFields": false,
    "alwaysStrict": true,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "downlevelIteration": false,
    "noEmitHelpers": false,
    "noLib": false,
    "noStrictGenericChecks": false,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "esModuleInterop": true,
    "preserveConstEnums": false,
    "removeComments": false,
    "skipLibCheck": false,
    "checkJs": false,
    "allowJs": false,
    "declaration": true,
    "experimentalDecorators": false,
    "emitDecoratorMetadata": false,
    "target": "ES2017",
    "module": "ESNext"
  }
}

Playground Link: Provided

[adriengibrat]

interface FormDataEvent extends Event {
    readonly formData: FormData;
};
interface FormDataEventInit extends EventInit {
    formData: FormData;
};
declare var FormDataEvent: {
    prototype: FormDataEvent;
    new(type: string, eventInitDict?: FormDataEventInit): FormDataEvent;
};

[meidlinga]

Hello,

is there any ETA for this issue?

[jakebailey]

This was pulled into main in #44684, so is present in TS 4.4 and above. Playground Link