how to write mm/dd/yyyy date format for input field in javascript?

Question

I have to format a date in an input textbox in javascript or angular, and I am facing an issue in my code.

HTML:

<input  type="text" class="form-control" name="dateOfBirth" ng-model="dob" placeholder="Birthday(MM/DD/YYYY)" ng-required="true" ng-change="change()" maxlength="10" ng-maxlength="10" dob-format>

JS:

 vm.change = function (e) {
    if (vm.dob) {
        var dobLen = vm.dob.length;
        if (dobLen === 2 || dobLen === 5)
            vm.dob = vm.dob + "/";
    }
};

If I type "6"(month) instead of "06", it must automatically change to "06", here I am facing an issue where the forward slash will come when I type two letters and the backspace is not working. So anyone please help me.

Any help would be appreciated.

You could probably make the date check on blur (instead of doing it in change). This way you could use Date.parse on the whole string and then use angular filters to format the date — Phugo
– Phugo, Commented May 15, 2017 at 7:24

AWE · Accepted Answer · 2017-05-15 07:22:32Z

1

Change accordingly in change event.

Regex_replace('0' + Replace([Starting Date], '/', '/0'), '0*(\d\d)/0*(\d\d)/0*(\d\d)', '20$3-$1-$2')

answered May 15, 2017 at 7:22

AWE

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2 Comments

lalithkumar Over a year ago

what is this?can you just explain?

pbsbr Over a year ago

@AWE sorry I didn't understand.

mtizziani · Accepted Answer · 2017-05-15 07:32:53Z

0

public static getDateForm_german(date: Date): string {
    let filter = {
        year: 'numeric',
        month: '2-digit',
        day: '2-digit'
    };
    return date.toLocaleString('de-DE', filter);  
    // returns like 30.02.1999 for 1999-02-30
}

i know it is not the format you are looking for, and it is typescript. but i think you are looking for something like this.

answered May 15, 2017 at 7:32

mtizziani

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Comments

lalithkumar · Accepted Answer · 2017-05-15 07:33:37Z

0

Try like below:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script>
var app = angular.module('myApp', []);
          app.controller('appCtrl', ['$scope', function($scope){
              vm=$scope;
               vm.change = function (e) {
    if (vm.dob) {
        var dobLen = vm.dob.length;
        if (dobLen === 2 || dobLen === 5)
            vm.dob = vm.dob + "/";
    }
};
          }]);
</script>

HTML:

<div ng-app="myApp" ng-controller="appCtrl">
        <input  type="text" class="form-control" name="dateOfBirth" ng-model="dob" placeholder="Birthday(MM/DD/YYYY)" ng-required="true" ng-change="change()" maxlength="10" ng-maxlength="10" dob-format>
     </div>

This is working like charm for me.

answered May 15, 2017 at 7:33

lalithkumar

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1 Comment

lalithkumar Over a year ago

This is the remember to accept the answer if appropriate @pbsbr

Emil S. Jørgensen · Accepted Answer · 2017-05-15 07:52:42Z

0

A mixture of the pattern attribute and some onchange formatting can fix this:

var inp = document.body.appendChild(document.createElement("input"));
inp.pattern = "\\d\\d/\\d\\d/\\d\\d";
inp.placeholder = "YY/MM/DD";
inp.required = true;

function formatDate(evt) {
  var val = inp
    .value
    .toString().split("/")
    .map(function(a) {
      if (a.length == 1) {
        return "0" + a;
      }
      return a;
    })
    .join("/");
  if (/\d\d\/\d\d\/\d\d/.test(val)) {
    inp.value = val;
  }
}
inp.onchange = formatDate;

answered May 15, 2017 at 7:52

Emil S. Jørgensen

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1 Comment

humans Over a year ago

This does nothing at all for formatting and or validation.

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