Lea Verou • 2/12/2009

Extend Math.round, Math.ceil and Math.floor to allow for precision

Read Original

This technical article explains how to extend JavaScript's native Math.round, Math.ceil, and Math.floor functions to accept precision parameters, allowing developers to round numbers to specific decimal places without repetitive code. It provides implementation examples, discusses code optimization using loops to avoid repetition, and analyzes the performance implications of these extensions.

0 comments
#JavaScript #dry principle #Math Functions
Extend Math.round, Math.ceil and Math.floor to allow for precision

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser

Top of the Week

1
Quoting Thariq Shihipar
Simon Willison • 2 votes
2
Using Browser Apis In React Practical Guide
Jivbcoop • 2 votes
3
Top picks — 2026 January
Paweł Grzybek • 1 votes
4
In Praise of –dry-run
Henrik Warne • 1 votes
5
Deep Learning is Powerful Because It Makes Hard Things Easy - Reflections 10 Years On
Ferenc Huszár • 1 votes
6
Vibe coding your first iOS app
William Denniss • 1 votes
7
AGI, ASI, A*I – Do we have all we need to get there?
John D. Cook • 1 votes
8
Dew Drop – January 15, 2026 (#4583)
Alvin Ashcraft • 1 votes