SyntaxFix

[javascript] set date in input type date

I usually create these two helper functions when using date inputs:

// date is expected to be a date object (e.g., new Date())
const dateToInput = date =>
  `${date.getFullYear()
  }-${('0' + (date.getMonth() + 1)).slice(-2)
  }-${('0' + date.getDate()).slice(-2)
  }`;

// str is expected in yyyy-mm-dd format (e.g., "2017-03-14")
const inputToDate = str => new Date(str.split('-'));

You can then set the date input value as:

$('#datePicker').val(dateToInput(new Date()));

And retrieve the selected value like so

const dateVal = inputToDate($('#datePicker').val())

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