EC
TS2390
TypeScriptERRORNotableTypeHIGH confidence

Constructor implementation is missing.

Production Risk

Build will fail; resolve before shipping.

What this means

A type-checking error (TS2390): Constructor implementation is missing.. This diagnostic is emitted by the TypeScript compiler when constructor implementation is missing..

Why it happens
  1. 1The function overload signatures do not match the implementation
How to reproduce

TypeScript compiler reports TS2390 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS2390
// Constructor implementation is missing.

expected output

error TS2390: Constructor implementation is missing.

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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