I would like to show the auto date format like mm/dd/yy...with auto add /. I would like to implement exact same functionality shown in the below example from Fiddle.

Here is the example: Fiddle.


You can simply use lightning:input together with its onchange attribute:

<--! yourComponent.cmp -->
    <lightning:input name="customInput" maxlength="10" onchange="{!c.onCustomInputChange}"/>

<--! yourComponentController.js -->
    onCustomInputChange: function (component, event, helper) {
       helper.validateAndReplace(component, event);

<--! yourComponentHelper.js -->
    validateAndReplace: function (component, event) {
        const input = event.getSource();
        const inputValue = input.get('v.value');
        const validValue = inputValue.replace(/^(\d\d)(\d)$/g,'$1/$2')
        input.set('v.value', validValue);
  • Thanks, above one is working. how to show a date-picker with the above working functionality. – alok jha Aug 19 at 17:18
  • Specify the attributes for lightning:input type="date" dateStyle="short" – Oleh Berehovskyi Aug 19 at 17:28
  • I already tried the above mentioned suggestion, then its not working. – alok jha Aug 19 at 17:39
  • What do you mean by "not working" ? – Oleh Berehovskyi Aug 19 at 17:48
  • if i am including type="date" dateStyle="short" then auto add / is not working and the error i am getting is Uncaught Action failed: c:dateFormatAuto$controller$onCustomInputChange [Cannot read property 'replace' of null] – alok jha Aug 20 at 5:23

ui:inputDate already has format attribute. You can utilize that one for auto format.

<ui:inputDate aura:id="EndDateField" value="" displayDatePicker="true" format="MM/dd/yyyy"/>


As ui:inputDate is going to deprecated soon, lightning:input can be used in it's place. Use dateStyle attribute as short to make in format like 1/7/2019.

<lightning:input aura:id="dob" type="date" name="accdob" dateStyle="short" label="Date of Birth" value="{!v.account.DOB__c}" />

Check complete documentation here.

Update 2:

You can implement same code in lightning as well.


<lightning:input type="date" aura:id="Birthdate" dateStyle="short"  name="Birthdate" maxlength="10" onchange="{!c.onChange}"/>

JS Controller:

    onChange : function(component, event, helper) {
    var dob = component.find("Birthdate");
    var dateValue = dob.get('v.value');
    var formattedValue=dateValue.replace(/^(\d\d)(\d)$/g,'$1/$2').replace(/^(\d\d\/\d\d)(\d+)$/g,'$1/$2').replace(/[^\d\/]/g,'');
  • 5
    I won't recommend use of ui:inputDate as it would be deprecated soon linkedin.com/pulse/… – Pranay Jaiswal Aug 19 at 17:00
  • Thank you for sharing this link. – Dhanik Lal Sahni Aug 19 at 17:28
  • dateStyle="short" will only work if we select from the date-picker, if we enter it manually in the input field then it will not going to work. @DhanikLalSahni – alok jha Aug 20 at 6:56
  • Check Update 2 for same kind of functionality. – Dhanik Lal Sahni Aug 20 at 10:45
  • it only works when we enter the date manually. it doesn't have the functionality to select from the date picker i want both functionality should work if we enter it manually or either by selecting the date from date-picker. – alok jha Aug 20 at 11:33

The desired functionality i was able to achieve through ui:inputdate.


<div class="slds-align_absolute-center slds-page-header__title slds-truncate">
    <lightning:icon iconName="action:new_task" alternativeText="Approved"/>
    <h1 class="slds-m-left_large">AutoSlash</h1>

<div class="slds-grid  slds-gutters slds-align_absolute-center">
    <div class="slds-col slds-size_6-of-12">
        <label>OnKeyUp :</label>
        <ui:inputDate aura:id="inputData" value="{!v.DOB}" format="MM/dd/yyyy" displayDatePicker="true" keyup="{!c.onChange}" change="{!c.onChange}" updateOn="keyup,change" />


onChange : function(component, event){
    var seperator = "/";
    var lengthTtl;
    var curntVal;

    curntVal = component.find("inputData").get('v.value');
    lengthTtl = curntVal.length;
    if(lengthTtl == 2 || lengthTtl == 5) {
        curntVal += seperator;
    window.addEventListener("keydown", function(e){
        if((e.keyCode >= 65 && e.keyCode <=90) || (e.keyCode >= 106 && e.keyCode <=123) || (e.keyCode >= 186 && e.keyCode <=192) || (e.keyCode >= 219 && e.keyCode <=222)) {


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