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extra-integer

v2.1.39

Published

A 32-bit integer can store values from -2^31 to 2^31 - 1.

Downloads

193

Readme

A 32-bit integer can store values from -2^31 to 2^31 - 1. 📦 Node.js, 🌐 Web, 📜 Files, 📰 Docs, 📘 Wiki.

This package deals with the manipulation of 32-bit integers in JavaScript, which can store values ranging from -2^31 (MIN_VALUE) to 2^31 - 1 (MAX_VALUE). JavaScript converts a Number (a 64-bit floating point number) to a 32-bit integer (int32) when bitwise operators (such as |) are applied.

Use is to check is a number can be represented as a 32-bit integer. Sign-based operations include abs and signEqual. Power/logarithm related operations include isPow2, prevPow2, nextPow2, pow2, pow10, log2, and log10.

This package is available in Node.js and Web formats. To use it on the web, simply use the extra_integer global variable after loading with a <script> tag from the jsDelivr CDN.

Stability: Experimental.

const xinteger = require('extra-integer');
// import * as xinteger from "extra-integer";
// import * as xinteger from "https://unpkg.com/extra-integer/index.mjs"; (deno)

xinteger.is(9.11e-31);
// → false

xinteger.log10(10000);
// → 4

xinteger.nextPow2(63);
// → 64

Index

| Property | Description | | ---- | ---- | | MIN_VALUE | Minimum int32 value. | | MAX_VALUE | Maximum int32 value. | | | | | is | Check if value is int32. | | | | | abs | Get the absolute of an int32. | | signEqual | Check if two int32s have equal sign. | | | | | isPow2 | Check if int32 is a power-of-2. | | prevPow2 | Find previous power-of-2 of an int32. | | nextPow2 | Find next power-of-2 of an int32. | | pow2 | Find the power-of-2 of an int32. | | pow10 | Find the power-of-10 of an int32. | | log2 | Find the base-2 logarithm of an int32. | | log10 | Find the base-10 logarithm of an int32. |

References

ORG DOI Coverage Status Test Coverage Maintainability