/scratch/workspace/artdaq-demo-v2_09_03/SLF6/s48-e14-debug/build/artdaq_node_server/v1_00_07/src/node_modules/xml2js/node_modules/xmlbuilder/node_modules/lodash/isNaN.js
_.isNaN(NaN); // => true
_.isNaN(new Number(NaN)); // => true
isNaN(undefined); // => true
_.isNaN(undefined); // => false