JavaScript Get Input Value
Last Updated : Mar 11, 2024
IN - JavaScript | Written & Updated By - Ashish
In this article we will show you the solution of JavaScript get input value, the value attribute's value value is set or returned by a text field's value property.
The value property includes the user's entered value OR the default value (or a value set by a script).
To get the value of such a text input field, we can utilise a number of JavaScript techniques.
The text value property can be used to set and get the value of such a textual field's value attribute.
Moreover, the text input field's value may be obtained or changed within the script by using the jquery val() method. Now move to the concept of javascript get input value.
Step By Step Guide On JavaScript Get Input Value :-
The value of an input field's value attribute can be changed or returned using the text value property.
The Input Text Field's initial value is defined by the value attribute. It includes either the user's input or the default value.
<!DOCTYPE html>
<html>
<head>
<title> Javascript get input value
</title>
</head>
<body>
<input type="text" placeholder="Type " id="inputId" class="inputClass">
<button type="button" onclick="getInputValue();">Get Value</button>
<script>
function getInputValue() {
let inputVal = document.getElementsByClassName("inputClass")[0].value;
alert(inputVal);
}
</script>
</body>
</html>
- We use <!DOCTYPE HTML> at the beginning of our code. The HTML doctype element is used to specify which version of HTML a document is using. A document type declaration is what is used to describe this (DTD).
- Next, we employed HTML and HEAD tags, and the TITLE tag was used to provide the title for the web page.
- Next, we begin writing the actual code that will be shown on the website using the BODY tag.
- Next, we utilise the INPUT text tag with placeholder attribute to specify a brief description of the intended value of an input field. A quick message is displayed in the input box prior to the user entering a value.
- Id and class are also used as inputid and inputclass, respectively.
- Then, using the getinputvalue function, we create a button that defines the clickable button (often used with JavaScript that activate a script).
- Following that, we begin our script and call the getinputvalue method ().
- After that, the value attribute is obtained using getElementsByClassName and the getInputValue() function.
- The text input field's value can be obtained using getElementsByClassName. It gives back the group of elements that the class name specifies. The document element is used to call the getElementsByClassName() function.
- The class name is represented by inputClass. If there are no matching elements, [0] means to return undefined.
- After that, we use an alert to show that value. Finally, we use SCRIPT, BODY, and HTML elements to wrap up our code.
Conclusion :-
Thus, we were able to understand the idea about javascript get input value.
We also discovered that the set of elements given by the class name is returned by the getElementsByClassName() method.
And With the text value property, one can modify or retrieve the value of such an inputs field's value attribute.
The value attribute specifies the default value for the Input Text Field. Either the default value or the user's input is included.
I hope this article on JavaScript get input value helps you and the steps and method mentioned above are easy to follow and implement.
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