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HTML DOM Input Number Object
The HTML DOM input number Object represent the <input< element with type=”number”.
Let’s see how to create input number object
Syntax
Following is the syntax −
var numberInput = document.createElement(“INPUT”); numberInput.setAttribute(“type”,”number”);
Properties
Following are the properties of input number Object −
| Property | Explanation |
|---|---|
| autocomplete | It returns and alter the value of the autocomplete attribute of number input field. |
| autofocus | It returns and modify whether the input number field should get focused or not when page load. |
| disabled | It returns and modify whether the input number field is disabled or not. |
| defaultValue | It returns and alter the default value of the input number field. |
| form | It returns the reference of the form that contain the input number field in the HTML document. |
| list | It returns the reference of the datalist that contain the input number field. |
| max | It returns and modify the value of the max attribute of input number field. |
| min | It returns and modify the value of the min attribute of input number field. |
| name | It returns and alter the value of the name attribute of input number field. |
| readOnly | It returns and modify whether the input number field is read-only or not. |
| required | It returns and modify whether the number field must be filled out before submitting the form. |
| step | It returns and alter the value of the set attribute of input number field. |
| type | It returns the value of the type attribute of number input field. |
| value | It returns and modify the content of the value attribute of number input field. |
| placeholder | It returns and modify the value of the placeholder attribute of number input field. |
Methods
Following are the methods of input number Object
| Method | Explanation |
|---|---|
| stepUp() | It increments the value of input number field by the value specified in its parameter. |
| stepDown() | It decrements the value of input number field by the value specified in its parameter. |
Example
Let us see an example of input number object −
<!DOCTYPE html>
<html>
<style>
body{
text-align:center;
background-color:#363946;
color:#fff;
}
form{
margin:2.5rem auto;
}
button{
background-color:#db133a;
border:none;
cursor:pointer;
padding:8px 16px;
color:#fff;
border-radius:5px;
font-size:1.05rem;
outline:none;
}
.show{
font-weight:bold;
font-size:1.4rem;
}
</style>
<body>
<h1>form Property Demo</h1>
<form id="Form 1">
<fieldset>
<legend>Form 1</legend>
<input type="month" class="monthInput">
</fieldset>
</form>
<button onclick="identify()">Identify Month Input Field</button>
<p class="show"></p>
<script>
function identify() {
var formId = document.querySelector(".monthInput").form.id;
document.querySelector(".show").innerHTML = "Hi! I'm from " + formId;
}
</script>
</body>
</html>Output
This will produce the following output −
Click on “Create an input number field” button to create a number input field.
Updated on: 30-Jul-2019
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