---
title: "Discussion on \"JavaScript Math Reference\" | Hashnode"
description: "Discussion on \"JavaScript Math Reference\". Basic Rounding Functions\nMath.floor(x) -> Always rounds DOWN to nearest integer\nMath.floor(4.9); // 4\nMath.floor(4.1); // 4\nMath.floor(-4.1); // -5 (down means more negative)\nMath.floor(-4.9); // -5\n\nMath.ceil(x) -> Always rounds UP to nearest intege..."
url: "https://hashnode.com/posts/javascript-math-reference/687478aa6798b9d5678736d1"
---

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# [JavaScript Math Reference](https://tigerabrodi.blog/javascript-math-reference?utm_source=hashnode&utm_medium=feed)

Basic Rounding Functions Math.floor(x) -> Always rounds DOWN to nearest integer Math.floor(4.9); // 4 Math.floor(4.1); // 4 Math.floor(-4.1); // -5 (down means more negative) Math.floor(-4.9); // -5 Math.ceil(x) -> Always rounds UP to nearest intege...

Jul 14, 2025 · 2 min read · tigerabrodi.blog  
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[Tiger Abrodi](https://hashnode.com/@tigerabrodi)

@tigerabrodi · Germany

  
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Obsessed with crafting software.

Just a guy who loves to write code and watch anime.

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