Type not assignable TypeScript TS2322

Why This Happens

In TypeScript, you assigned a value of the wrong type to a variable. This is one of the most common TypeScript errors developers encounter. Understanding the root cause helps you fix it quickly and prevent it from recurring.

The Problem

let count: number = '5';

The Fix

let count: number = 5;
// Or: let count: number = parseInt('5');

Step-by-Step Fix

1. 1

   Identify the error

   Look at the error message: TS2322: Type 'string' is not assignable to type 'number'. This tells you exactly what went wrong.

2. 2

   Find the cause

   Check the stack trace to find which line of your TypeScript code triggered this error.

3. 3

   Apply the fix

   Use the corrected code pattern shown above. Test to confirm the error is resolved.