The Input Text defaultValue Property in HTML DOM is used to set or return the default value of the Text 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 indicate the default value and the value contains the current value after making some changes. This property is useful to find out whether the text field have been changed or not.
Syntax:
- It returns the defaultValue property.
textObject.defaultValue
- It is used to set the defaultValue property.
textObject.defaultValue = value
Property Values: It contains single property value value which defines the default value for text field.
Return Value: It returns a string value which represent the default value of the text field.
Example 1: This example illustrates how to return Input Text defaultValue property.
<!DOCTYPE html><html>
<head>
<title>
HTML DOM Input Text defaultValue Property
</title>
</head>
<body style="text-align:center;">
<h1>GeeksForGeeks</h1>
<h2>DOM Input Text defaultValue Property</h2>
<form id="myGeeks">
<input type="text"
id="text_id"
name="geeks"
value="GeeksForGeeks">
</form><br>
<button onclick="myGeeks()">Click Here!</button>
<p id="GFG" style="font-size:20px;"></p>
<!-- script to return the defaultValue Property-->
<script>
function myGeeks() {
let txt = document.getElementById("text_id").defaultValue;
document.getElementById("GFG").innerHTML = txt;
}
</script>
</body>
</html>
|
Output:
Example 2: This example illustrates how to set Input Text defaultValue property.
<!DOCTYPE html><html>
<head>
<title>
HTML DOM Input Text defaultValue Property
</title>
</head>
<body style="text-align:center;">
<h1>GeeksForGeeks</h1>
<h2>DOM Input Text defaultValue Property</h2>
<form id="myGeeks">
<input type="text"
id="text_id"
name="geeks"
value="GeeksForGeeks">
</form><br>
<button onclick="myGeeks()">
Click Here!
</button>
<p id="GFG" style="font-size:20px;"></p>
<!-- script to set the defaultValue Property-->
<script>
function myGeeks() {
let txt =
document.getElementById("text_id").defaultValue
= "HelloGeeks";
document.getElementById("GFG").innerHTML = txt;
}
</script>
</body>
</html>
|
Output:
Supported Browsers: The browser supported by DOM input Text defaultValue Property are listed below:
- Google Chrome 1 and above
- Edge 12 and above
- Firefox 1 and above
- Opera
- Safari 1 and above