Quick Answer

Handle type mismatch issues.

Understanding the Issue

TypeScript prevents assignments between incompatible types to catch bugs early.

The Problem

This code demonstrates the issue:

Typescript Error 
const num: number = "hello"; // Error

The Solution

Here's the corrected code:

Typescript Fixed 
// Solution 1: Correct the type
const str: string = "hello";

// Solution 2: Type assertion
const num = "123" as unknown as number; // Last resort

// Solution 3: Runtime validation
function isNumber(x: unknown): x is number {
  return typeof x === "number";
}

// Solution 4: Union type
let value: string | number = "hello";
value = 42; // Valid

Key Takeaways

Maintain type consistency or use proper type conversions.