@cleerlycode/cornerstone-wado-image-loader/src/imageLoader/wadors/metaData/getNumberString.js

Cornerstone ImageLoader for DICOM WADO-URI

import getValue from './getValue.js';

/**
 * Returns the first string value as a Javascript number
 *
 * @param element - The javascript object for the specified element in the metadata
 * @param [index] - the index of the value in a multi-valued element, default is 0
 * @param [defaultValue] - The default value to return if the element does not exist
 * @returns {*}
 */
function getNumberString (element, index, defaultValue) {
  const value = getValue(element, index, defaultValue);

  if (value === undefined) {
    return;
  }

  return parseFloat(value);
}

export default getNumberString;