#1 JavaScript Interview Question
Certainly! Let’s dive into both the JavaScript code snippet and a LinkedIn-worthy post to share the knowledge. 🚀
👉 JavaScript Code Explanation
const x = { name: "Pankaj" };
const y = { name: "Pankaj" };
// Check if x and y are strictly equal
👉 console.log(x === y); // Output: false
👉 We’ve declared two objects:
x with a property name set to the string "Pankaj".
y with the same property name set to the same string "Pankaj".
When you compare them using x === y:
The === operator checks for strict equality. It compares not only the values but also the reference (memory address) of the objects.
Since x and y are separate objects (even though their properties have the same value), they occupy different memory locations.
👉 Therefore, the result of x === y is false.
In summary, even though the contents of the objects are the same, they are distinct objects in memory. If you want to compare their contents (i.e., the properties), you’d need to compare those explicitly, like comparing x.name === y.name.
Have you ever wondered why x === y sometimes surprises you? Let’s break it down! 🧐
👉 The Scenario:
You’ve got two objects: x and y.
Both have a property called name with the value "Pankaj".
👉 The Comparison:
You use the strict equality operator === to compare them.
But wait! It’s not just about values; it’s about memory addresses too.
Since a and b are separate objects, they live in different memory locations.
👉 The Result:
The result of x === y is… false!
Even though their contents match, they’re not the same object in memory.
Remember: If you want to compare the actual contents (like the name property), use x.name === y.name.
Keep coding, stay curious, and share the knowledge! 🚀✨
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