Once you are familiar with implementing a password in JavaScript, it becomes straightforward to grasp how to switch the visibility of that password.
In this segment, we will explore the method to switch the visibility of a password in JavaScript by demonstrating an example to achieve this functionality.
When implementing a password field in our application, it is commonly understood that the input is obscured by displaying '' characters. This functionality serves as a security measure for the password entered by the user. As the user types their password into the designated field, it appears as a series of '' symbols, concealing the actual characters. However, there are instances where an administrator may inadvertently enter the password incorrectly, mistakenly believing that it has been input correctly. Following an unsuccessful login attempt, the administrator may wish to view the actual password string to identify the error and avoid repeating it.
To facilitate this process, the administrator would typically need to access the database to retrieve the password. However, introducing a feature that allows for toggling password visibility can prove beneficial. This feature would enable the administrator to confirm whether the password has been entered accurately without the need to navigate to the database and search for the password. Therefore, we should implement a button that allows users to toggle the visibility of their password.
Steps to Toggle the Password Visibility
To change the visibility of the password, one should adhere to the steps outlined below:
Step 1: Generate an input element designed specifically for password entry that will accept user input in the form of a password.
Step 2: Incorporate an icon inside the input field that allows users to click and switch the visibility of the password.
Step 3: Assign an event handler that activates when the icon is clicked. If the user interacts with the icon, it should switch the type attribute of the password input field from password to text. Consequently, when the type transitions from password to text, the actual characters that the user has entered will become visible.
Step 4: Therefore, when the user deselects the icon, the visible password text is once again switched in the password input field.
The individual must incorporate the outlined procedures within the code to enable the functionality for toggling the visibility of the password.
At this point, let's examine a sample code snippet that will assist us in comprehending the process more effectively.
Toggling the Password Visibility in JavaScript
The following example code illustrates the execution of the processes necessary to switch the visibility of the password:
<!DOCTYPE html>
<html>
<head>
<title>JS Toggle Password Visibility</title>
</head>
Enter Password: <input type="password" value="Example" id="pswrd">
<input type="checkbox" onclick="toggleVisibility()"/>Show Password</br>
<body>
<script>
function toggleVisibility() {
var getPasword = document.getElementById("pswrd");
if (getPasword.type === "password") {
getPasword.type = "text";
} else {
getPasword.type = "password";
}
}
</script>
</body>
</html>
The output of the above code is shown below:
In the code:
- The above code is a combination of JavaScript and HTML.
- We have created an input element for entering password value and given a password value.
- Next, we have created a checkbox on which we have invoked the JavaScript function.
- When the user clicks on the checkbox, the password value becomes visible.
- When the user unclicks the checkbox, the actual password again gets hidden.
As a result, by employing this technique, we are able to switch the visibility of the password.