ts-r
  • Error
  • Reported by the binder

TS1114

Duplicate label '{0}'.

Two nested statements use the same label. Give the inner one a different label.

What it means

A label names a loop or block so break and continue can target it. A label can't be reused for a statement nested inside another statement with the same label, since break outer would be ambiguous.

Example

index.ts
outer: for (;;) {
  outer: for (;;) { break outer; }
}
export {};
ts-r-check -p tsconfig.json --pretty false ts-r output
index.ts(2,3): error TS1114: Duplicate label 'outer'.

Recorded by node scripts/verify-examples.mjs with ts-r built from commit 6deaf01. The example uses the default tsconfig: strict, target: es2022, module: esnext, moduleResolution: bundler.

How to fix

  • Rename the inner label (inner:) and update the break or continue statements that use it.