format-quantity

format-quantity

Formats a number (or string that appears to be a number) as one would see it written in imperial measurements, e.g. "1 1/2" instead of "1.5". To use unicode vulgar fractions like "⅞", pass true as the second argument.

For the inverse operation, converting a string (which may include mixed numbers or vulgar fractions) to a number, check out numeric-quantity or, if you're interested in parsing recipe ingredient strings, try parse-ingredient.

Installation

npm

# npm
npm i format-quantity

# yarn
yarn add format-quantity

Browser

In the browser, available as a global function formatQuantity.

<script src="https://unpkg.com/format-quantity"></script>
<script>
  console.log(formatQuantity(10.5)); // "10 1/2"
</script>

Usage

import formatQuantity from 'format-quantity';

console.log(formatQuantity(1.5)); // "1 1/2"
console.log(formatQuantity(2.66)); // "2 2/3"
console.log(formatQuantity(3.875, true)); // "3⅞"

The return value will be null if the provided argument is not a number or a string that evaluates to a number using parseFloat. The return value will be an empty string ("") if the provided argument is 0 or "0" (this is done to fit the primary use case of recipe ingredients).

Changelog

[v1.0.2] - 2022-04-16

Added

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