Top TypeScript issues

Narrow type by `typeof value extends Type ? any : never`

Question

Using && with spread operator causes "overridden" error if one of the types is "any"

Breaking Change Bug Fix Available

"Number.isFinite" and "Number.isInteger" do not filter out values as a predicate

Working as Intended

Backward compat issue with non enumerable properties

Declined Suggestion

`import 'constants' ` always resolving to the node 'constants' module

Working as Intended

Typescript 3.9 CommonJS code emitted sets exports to void 0 (leading to error TS2323: Cannot redeclare exported variable)

Bug Fix Available checkJs

3.9 Regression: `organizeImports` prepends/appends "undefined" when there are 2+ named imports

Bug

Add :: operator - as shortcut for Function.bind call

Out of Scope Suggestion

Expose Self as a type within classes

Duplicate

Suggestion: short-circuit type inference for ternary operators when both branches have the same type

Performance