TS1123
TypeScriptERRORNotableSyntaxHIGH confidence

Variable declaration list cannot be empty.

Production Risk

Build will fail; resolve before shipping.

What this means

A syntax error (TS1123): Variable declaration list cannot be empty.. This diagnostic is emitted by the TypeScript compiler when variable declaration list cannot be empty..

Why it happens
  1. 1Incorrect TypeScript syntax or type usage
  2. 2Type mismatch between declared and actual value
How to reproduce

TypeScript compiler reports TS1123 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS1123
// Variable declaration list cannot be empty.

expected output

error TS1123: Variable declaration list cannot be empty.

Fix

Address the TypeScript diagnostic

WHEN When this error is reported by the compiler

Address the TypeScript diagnostic
// Run the TypeScript compiler for details:
npx tsc --noEmit
// Use the TypeScript playground to test your code:
// https://www.typescriptlang.org/play

Why this works

Review the full error message and location; the TypeScript handbook provides guidance on each error category.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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