quickfix: convert to es6 should add extension

[jimmywarting]

TS Template added by @mjbvz

TypeScript Version: 4.3.5

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Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.59.0
• OS Version: Mac 10.15.7

Steps to Reproduce:

1. Take any commonjs project (not written in typescript)
2. Do the quick fix of converting any javascript project into a ES6

Then the extension is omitted. I think it should automatically be added. Cuz ESM is strict about file paths.

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• old code: var dateFormat = require("../lib/dateformat");
• after conversion: import dateFormat from "../lib/dateformat"; (file not found)
• expected import dateFormat from "../lib/dateformat.js";

[mjbvz]

Have you tried setting:

"javascript.preferences.importModuleSpecifierEnding": "js"

[jimmywarting]

hmm, no. but that was a useful settings i have been looking for, thx
It solved the autocompletion when writing but it didn't solve the auto converter (quick fix) (turning cjs to esm)

importModuleSpecifierEnding should always be on when writing ESM modules