PHP's log10 in TypeScript

How to use

Install via yarn add locutus and import: import { log10 } from 'locutus/php/math/log10'.

Or with CommonJS: const { log10 } = require('locutus/php/math/log10')

Use a bundler that supports tree-shaking so you only ship the functions you actually use. Vite, webpack, Rollup, and Parcel all handle this. For server-side use this is less of a concern.

Examples

These examples are extracted from test cases that automatically verify our functions against their native counterparts.

#	code	expected result
1	log10(10)	1
2	log10(1)	0

Here's what our current TypeScript equivalent to PHP's log10 looks like.

TSTypeScript JSJavaScript TSStandalone TS JSStandalone JS

Copy code

export function log10(arg: number): number {
  //      discuss at: https://locutus.io/php/log10/
  // parity verified: PHP 8.3
  //     original by: Philip Peterson
  //     improved by: Onno Marsman (https://twitter.com/onnomarsman)
  //     improved by: Tod Gentille
  //     improved by: Brett Zamir (https://brett-zamir.me)
  //       example 1: log10(10)
  //       returns 1: 1
  //       example 2: log10(1)
  //       returns 2: 0

  return Math.log(arg) / 2.302585092994046 // Math.LN10
}

export function log10(arg) {
  //      discuss at: https://locutus.io/php/log10/
  // parity verified: PHP 8.3
  //     original by: Philip Peterson
  //     improved by: Onno Marsman (https://twitter.com/onnomarsman)
  //     improved by: Tod Gentille
  //     improved by: Brett Zamir (https://brett-zamir.me)
  //       example 1: log10(10)
  //       returns 1: 1
  //       example 2: log10(1)
  //       returns 2: 0

  return Math.log(arg) / 2.302585092994046 // Math.LN10
}

Improve this function

Locutus is a community effort following The McDonald's Theory: we ship first iterations, hoping others will improve them. If you see something that could be better, we'd love your contribution.

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