Function isDay

telemetry-dashboard/public/app.js:57–57

(value)

const dayMs = (day) => Date.parse(`${day}T00:00:00Z`);
const addDays = (day, delta) => utcDay(dayMs(day) + delta * DAY_MS);
const isDay = (value) => /^\d{4}-\d{2}-\d{2}$/.test(value) && Number.isFinite(dayMs(value));

// ---------------------------------------------------------------------------
// State