locutus/php/var/is_float.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

"use strict";

module.exports = function is_float(mixedVar) {
  // eslint-disable-line camelcase
  //  discuss at: https://locutus.io/php/is_float/
  // original by: Paulo Freitas
  // bugfixed by: Brett Zamir (https://brett-zamir.me)
  // improved by: WebDevHobo (https://webdevhobo.blogspot.com/)
  // improved by: Rafał Kukawski (https://blog.kukawski.pl)
  //      note 1: 1.0 is simplified to 1 before it can be accessed by the function, this makes
  //      note 1: it different from the PHP implementation. We can't fix this unfortunately.
  //   example 1: is_float(186.31)
  //   returns 1: true

  return +mixedVar === mixedVar && (!isFinite(mixedVar) || !!(mixedVar % 1));
};
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