// helper function: wrapper around console output export function log(...msg) { const dt = new Date(); const ts = `${dt.getHours().toString().padStart(2, '0')}:${dt.getMinutes().toString().padStart(2, '0')}:${dt.getSeconds().toString().padStart(2, '0')}.${dt.getMilliseconds().toString().padStart(3, '0')}`; // eslint-disable-next-line no-console if (msg) console.log(ts, 'Human:', ...msg); } // helper function: gets elapsed time on both browser and nodejs export const now = () => { if (typeof performance !== 'undefined') return performance.now(); return parseInt((Number(process.hrtime.bigint()) / 1000 / 1000).toString()); }; // helper function: perform deep merge of multiple objects so it allows full inheriance with overrides export function mergeDeep(...objects) { const isObject = (obj) => obj && typeof obj === 'object'; return objects.reduce((prev, obj) => { Object.keys(obj || {}).forEach((key) => { const pVal = prev[key]; const oVal = obj[key]; if (Array.isArray(pVal) && Array.isArray(oVal)) prev[key] = pVal.concat(...oVal); else if (isObject(pVal) && isObject(oVal)) prev[key] = mergeDeep(pVal, oVal); else prev[key] = oVal; }); return prev; }, {}); }