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Explore Stack InternalAn approach using a try/catch
function getFormatedDategetFormattedDate(date = new Date()) { try { date.toISOString(); } catch (e) { date = new Date(); } return date; } console.log(getFormatedDategetFormattedDate()); console.log(getFormatedDategetFormattedDate('AAAA')); console.log(getFormatedDategetFormattedDate(new Date('AAAA'))); console.log(getFormatedDategetFormattedDate(new Date(2018, 2, 10)));An approach using a try/catch
function getFormatedDate(date = new Date()) { try { date.toISOString(); } catch (e) { date = new Date(); } return date; } console.log(getFormatedDate()); console.log(getFormatedDate('AAAA')); console.log(getFormatedDate(new Date('AAAA'))); console.log(getFormatedDate(new Date(2018, 2, 10)));An approach using a try/catch
function getFormattedDate(date = new Date()) { try { date.toISOString(); } catch (e) { date = new Date(); } return date; } console.log(getFormattedDate()); console.log(getFormattedDate('AAAA')); console.log(getFormattedDate(new Date('AAAA'))); console.log(getFormattedDate(new Date(2018, 2, 10)));An approach using a try/catch
function getFormatedDate(date = new Date()) { try { date.toISOString(); } catch (e) { date = new Date(); } return date; } console.log(getFormatedDate()); console.log(getFormatedDate('AAAA')); console.log(getFormatedDate(new Date('AAAA'))); console.log(getFormatedDate(new Date(2018, 2, 10)));