How to fix Argument of type 'number' is not assignable to parameter of type 'string' in TypeScript

// WRONG - number passed to string parameter
function displayId(id: string) {
  console.log("ID: " + id);
}

const userId = 42;
displayId(userId);  // TS2345: Argument of type 'number' is not assignable to parameter of type 'string'

// CORRECT - convert number to string
displayId(String(userId));  // Works!

const price = 99.99;
const message: string = price.toString();  // "99.99"

function logPrice(priceStr: string) {
  console.log("Price: " + priceStr);
}

logPrice(price.toString());  // Works!

const quantity = 5;
const item = "apples";

// Numbers in template literals are automatically converted
const result: string = `You have ${quantity} ${item}`;  // "You have 5 apples"

function processOrder(orderDetails: string) {
  // ...
}

processOrder(`Order: ${quantity} items`);  // Works!

// RESTRICTIVE - only accepts strings
function format(value: string): string {
  return `Value: ${value}`;
}

format(42);  // Error!

// BETTER - accepts both numbers and strings
function format(value: string | number): string {
  return `Value: ${value}`;
}

format(42);  // Works!
format("hello");  // Also works!

// NOT RECOMMENDED - bypasses safety
const count = 10;
function log(message: string) {
  console.log(message);
}

log(count as string);  // Compiles but count is still a number at runtime!

// BETTER - actual conversion
log(String(count));  // Type safe and correct

{
  "compilerOptions": {
    "strict": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "noImplicitAny": true
  }
}