You’ve Been Writing JavaScript Functions Wrong 😬 #javascript #coding

Learn how to make function parameters required in JavaScript using a simple one-liner! This ES6 default parameter trick helps you enforce argument validation cleanly—no TypeScript or manual checks needed.

✅ In this Short:

Use default values to throw errors when args are missing

Make your functions safer and easier to debug

Improve your JavaScript fundamentals

📌 Code:

js
Copy
Edit
function foo(a = req()) {
console.log(a);
}
function req() {
throw new Error("a is mandatory");
}
foo("56"); // works
foo(); // throws error
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Видео You’ve Been Writing JavaScript Functions Wrong 😬 #javascript #coding канала Sathelli Srikanth