---
title: "sujitha (@Sujitha17) | Hashnode"
description: "student at SRM University AP. Read the latest articles by sujitha on Hashnode."
url: "https://hashnode.com/@Sujitha17"
---

@Sujitha17

# sujitha

@Sujitha17 · Vijayawada,AndhraPradesh,India · Joined March 2024

student at SRM University AP

### [Why typeof null Returns "object" in JavaScript](https://mypersonalblog.hashnode.dev/why-typeof-null-returns-object-in-javascript?utm_source=hashnode&utm_medium=feed)

In JavaScript, one of the quirks that has puzzled developers for decades is the fact that: console.log(typeof null); // Outputs: "object" This behavior is often described as a "historical bug" in the language, and understanding why this happens requi...

2 min read · [mypersonalblog.hashnode.dev](https://mypersonalblog.hashnode.dev/why-typeof-null-returns-object-in-javascript?utm_source=hashnode&utm_medium=feed)

[Dec 21, 2024](https://hashnode.com/posts/why-typeof-null-returns-object-in-javascript/676668c7a2999238936dc869)

### [Convex and Non-convex functions](https://mypersonalblog.hashnode.dev/convex-and-non-convex-functions?utm_source=hashnode&utm_medium=feed)

A convex function and a non-convex function differ primarily in the shape of their curves and in the nature of their optimization landscapes, which impacts how we can use techniques like gradient descent to find minimum points effectively. Convex Fun...

2 min read · [mypersonalblog.hashnode.dev](https://mypersonalblog.hashnode.dev/convex-and-non-convex-functions?utm_source=hashnode&utm_medium=feed)

[Nov 14, 2024](https://hashnode.com/posts/convex-and-non-convex-functions/67361153ad8208560e27e886)

### [What is cross-validation, and why is it important?](https://mypersonalblog.hashnode.dev/what-is-cross-validation-and-why-is-it-important?utm_source=hashnode&utm_medium=feed)

Cross-validation is essential because it: Provides a more accurate measure of model performance by testing it on multiple subsets of data, which better represents how it will perform on unseen data. Helps identify overfitting or underfitting by rev...

2 min read · [mypersonalblog.hashnode.dev](https://mypersonalblog.hashnode.dev/what-is-cross-validation-and-why-is-it-important?utm_source=hashnode&utm_medium=feed)

[Nov 13, 2024](https://hashnode.com/posts/what-is-cross-validation-and-why-is-it-important/6734c7a5201ba5bdd8daee34)

### [My New Certification in Python and SQL for Data Science](https://mypersonalblog.hashnode.dev/my-new-certification-in-python-and-sql-for-data-science?utm_source=hashnode&utm_medium=feed)

Hello everyone, I am thrilled to share some exciting news with you all! I have recently completed a comprehensive tutorial in Python and SQL for Data Science and earned a Certificate of Excellence from Scaler Topics. This journey has been incredibly ...

1 min read · [mypersonalblog.hashnode.dev](https://mypersonalblog.hashnode.dev/my-new-certification-in-python-and-sql-for-data-science?utm_source=hashnode&utm_medium=feed)

[Jul 14, 2024](https://hashnode.com/posts/my-new-certification-in-python-and-sql-for-data-science/669328192d40102bf4ec93fb)

### [Celebrating Milestones](https://mypersonalblog.hashnode.dev/celebrating-milestones?utm_source=hashnode&utm_medium=feed)

Earning the 50 Days Badge on LeetCode

2 min read · [mypersonalblog.hashnode.dev](https://mypersonalblog.hashnode.dev/celebrating-milestones?utm_source=hashnode&utm_medium=feed)

[Jul 13, 2024](https://hashnode.com/posts/celebrating-milestones/66927c8ad1961b652c101a14)