JavaScript: pass by value or by reference? Understanding the confusion

Hello everyone! I'm a beginner in JavaScript and I can't understand how argument passing actually works in functions. Some articles say that JS passes everything by value, others say that objects are passed by reference. I wrote a simple code that completely confused me. Here's an example: ```javascript function changeValue(x) { x = 10; console.log('Inside function:', x); } let a = 5; changeValue(a); console.log('After function:', a); // 5 — clear, the number didn't change ``` This is clear — a primitive is passed by value. But when I try with an object: ```javascript function changeObject(obj) { obj.name = 'New name'; } let user = { name: 'Old name' }; changeObject(user); console.log(user.name); // 'New name' — the object changed! So,