Function parseDimensions

services/isbn/openLibrary.js:14–34

* Parse the Open Library dimensions format into a proper object. * * @param {string} dimensionsStr The Open Library dimensions. * @returns A object with width and height if valid.

(dimensions)

 * @returns A object with width and height if valid.
 */
function parseDimensions(dimensions) {
  if (!dimensions) {
    return null;
  }

  const values = dimensions
    .replace(/ (centimeters|inches)$/, '')
    .split(' x ')
    .map(parseFloat)
    .filter((dm) => !Number.isNaN(dm));

  if (values.length !== 3) {
    return null;
  }

  return {
    width: values[1],
    height: values[0],
    unit: dimensions.includes('centimeters') ? 'CENTIMETER' : 'INCH',
  };
}

/**
 * Parse the Open Library publish date into a proper year number.