numeric-quantity

Converts a string to a number, like an enhanced version of parseFloat.

In addition to plain integers and decimals, numeric-quantity can parse numbers with comma or underscore separators ('1,000' or '1_000'), mixed numbers ('1 2/3'), vulgar fractions ('1⅖'), the fraction slash character ('1 2⁄3'), and Roman numerals ('MCCXIV' or 'Ⅻ'). The return value will be NaN if the provided string does not resemble a number.

For the inverse operation—converting a number to an imperial measurement—check out format-quantity.

For a more complete solution to parsing recipe ingredients, try parse-ingredient.

Usage

Installed

import { numericQuantity } from 'numeric-quantity';

console.log(numericQuantity('1 1/2')); // 1.5
console.log(numericQuantity('2 2/3')); // 2.667

CDN

As an ES module:

<script type="module">
  import { numericQuantity } from 'https://cdn.jsdelivr.net/npm/numeric-quantity/+esm';

  console.log(numericQuantity('10½')); // 10.5
</script>

As UMD (all exports are properties of the global object NumericQuantity):

<script src="https://unpkg.com/numeric-quantity"></script>
<script>
  console.log(NumericQuantity.numericQuantity('xii')); // 12
</script>

Other exports