EC
TS18004
TypeScriptERRORNotableTypeHIGH confidence

No value exists in scope for the shorthand property 'X'. Either declare one o...

Production Risk

Build will fail; resolve before shipping.

What this means

A TypeScript diagnostic (TS18004): No value exists in scope for the shorthand property 'X'. Either declare one or provide an initializer.. This diagnostic is emitted by the TypeScript compiler when no value exists in scope for the shorthand property 'X'. Either declare one or provide an initializer..

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

TypeScript compiler reports TS18004 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS18004
// No value exists in scope for the shorthand property 'X'. Either declare one or provide an initializer.

expected output

error TS18004: No value exists in scope for the shorthand property 'X'. Either declare one or provide an initializer.

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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