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HTML | DOM Input Number autofocus Property

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  • Difficulty Level : Basic
  • Last Updated : 17 Jun, 2021

The DOM Input Number autofocus Property in HTML DOM is used to set or return whether the Input number Field should get focus or not when the page loads. It reflects the HTML autofocus attribute.
Syntax: 
 

  • It returns the autofocus property. 
     
numberObject.autofocus
  • It is used to set the autofocus property. 
     
numberObject.autofocus = "true|false"

Property Values: 
 

  • true: It sets the focus of number field.
  • false: It has the default value. It defines the number field does not get focus.

Return Value: It returns a boolean value which represents the number field gets autofocus or not.
Example-1: This example returns the Input number autofocus property. 
 

html




<!DOCTYPE html>
<html>
 
    <body style="text-align:center;">
 
        <h1 style="color:green;">
            GeeksForGeeks
        </h1>
 
        <h2>DOM Input Number autofocus Property</h2>
             <form id="myGeeks">
        <input type="number"
            id="myNumber" step="5" name="geeks"
            placeholder="multiples of 5" autofocus>
            </form>    <br><br>
        <button onclick="myFunction()">
            Click Here!
        </button>
 
        <p id="demo" style="font-size:23px;color:green;"></p>
  
 
        <script>
            function myFunction() {
                 
                // Accessing input value
                var x =
                document.getElementById("myNumber").autofocus;               
                document.getElementById("demo").innerHTML = x;
            }
        </script>
 
    </body>
 
</html>                   

output: 
Before clicking on the button: 
 

After clicking on the button : 
 

Example-2: This Example illustrates how to set the Property. 
 

html




<!DOCTYPE html>
<html>
 
    <body style="text-align:center;">
 
        <h1 style="color:green;">
            GeeksForGeeks
        </h1>
 
        <h2>DOM Input Number autofocus Property</h2>
             <form id="myGeeks">
        <input type="number"
            id="myNumber" step="5" name="geeks"
            placeholder="multiples of 5" autofocus>
            </form>    <br><br>
        <button onclick="myFunction()">
            Click Here!
        </button>
 
        <p id="demo" style="font-size:23px;color:green;"></p>
  
 
        <script>
            function myFunction() {
                 
                // Accessing input value
                var x =
                document.getElementById("myNumber").autofocus = false;               
                document.getElementById("demo").innerHTML = x;
            }
        </script>
 
    </body>
 
</html>                   

Output: 
Before clicking on the button: 
 

After clicking on the button: 
 

Supported Browsers: The browser supported by DOM input number autofocus Property are listed below: 
 

  • Google Chrome
  • Internet Explorer 10.0 +
  • Firefox
  • Opera
  • Safari

 


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