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HTML DOM Input DatetimeLocal defaultValue Property

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  • Last Updated : 21 Sep, 2022
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The Input DatetimeLocal defaultValue property is used to set or return the default value of a local DateTime field. This property is used to reflect the HTML value attribute. The main difference between the default value and value is that the default value indicates the default value and the value contains the current value after making some changes. This property is useful to find out whether the DatetimeLocal field has been changed or not.

Syntax:

  • It is used to return the defaultValue property. 
datetimelocalObject.defaultValue
  • It is used to set the defaultValue property. 
datetimelocalObject.defaultValue = value

Property Values: It contains single property “value” which defines the default value for the local DateTime field.

Return Value: It returns a string value that represents the default value of the local DateTime field.

Example 1: This example illustrates how to return Input DatetimeLocal defaultValue property. 

HTML




<!DOCTYPE html>
<html>
   
<head>
    <title>Input DatetimeLocal defaultvalue Property</title>
    <style>
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
   
<body>
    <h1>GeeksforGeeks</h1>
    <h2>HTML DOM Input DatetimeLocal defaultvalue Property</h2>
    <input type="datetime-local" autocomplete="on"
        id="test"
        value="2019-07-02T25:32Z" autofocus>
    <p>Double Click to return the defaultvalue Property.</p>
    <button ondblclick="Access()">Access</button>
    <p id="check"></p>
 
    <script>
        function Access() {
             
            // return Input datetimelocal  defaultValue property
            var a = document.getElementById(
                    "test").defaultValue;
             
            document.getElementById(
                    "check").innerHTML = a;
        }
    </script>
</body>
   
</html>

Output: 

  • Before Clicking On Button: 

  • After Clicking On Button: 

Example 2: This example illustrates how to set  Input DatetimeLocal defaultValue property. 

HTML




<!DOCTYPE html>
<html>
   
<head>
    <title>Input DatetimeLocal defaultvalue Property</title>
    <style>
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
   
<body>
    <h1>GeeksforGeeks</h1>
    <h2>HTML DOM Input DatetimeLocal defaultvalue Property</h2>
    <input type="datetime-local" autocomplete="on"
        id="test"
        value="2019-07-02T25:32Z" autofocus>
    <p>Double Click to set the defaultvalue Property.</p>
    <button ondblclick="Access()">Access</button>
    <p id="check"></p>
 
    <script>
        function Access() {
             
             // set Input datetimelocal defaultValue  property
            var a = document.getElementById(
            "test").defaultValue = " 2015-01-02T11:42:13.510";
             
            document.getElementById(
            "check").innerHTML = " The value was changed to " + a;
        }
    </script>
</body>
   
</html>

Output: 

  • Before Clicking On Button: 

  • After Clicking On Button: 

Note : The <input type=”datetime-local”> element does not show any datetime field/calendar in Firefox.

Supported Browsers: The browsers supported by HTML DOM Input DatetimeLocal defaultvalue Property are listed below: 

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Apple Safari
  • Opera

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