The typeof operator

By xyz on 2 weeks ago|0 comment||

The typeof operator is used in JavaScript to determine the type of a given value. However, it can sometimes return unexpected results, leading to the following joke:

Why did the JavaScript developer go broke?
Because he used typeof on a penny and got a "string" instead of a "number."

let pennyAsNumber = 0.01;
let pennyAsString = "0.01";

// Use typeof to check the types
console.log(typeof pennyAsNumber);  // Output: "number"
console.log(typeof pennyAsString);  // Output: "string"

// Example of an unexpected typeof result
let nullValue = null;
console.log(typeof nullValue);  // Output: "object"

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