---
title: "How do you handle form submissions in KnockoutJS applications?"
description: "How do you handle form submissions in KnockoutJS applications?"
author: "Revati S Misra"
published: 2023-04-18
updated: 2023-11-24
canonical: https://www.mindstick.com/forum/157866/how-do-you-handle-form-submissions-in-knockoutjs-applications
category: "javascript"
tags: ["javascript framework", "knockout.js", "knockout mvc"]
reading_time: 3 minutes
---
# How do you handle form submissions in KnockoutJS applications?
How do you [handle](https://www.mindstick.com/articles/311004/suede-skillet-handle-cover) [form submissions](https://answers.mindstick.com/qa/106552/how-to-track-form-submissions-in-google-analytics) in [KnockoutJS applications](https://www.mindstick.com/forum/157871/how-do-you-debug-knockoutjs-applications-and-what-are-some-common-issues-that-can-arise)?
## Replies
### Reply by Aryan Kumar
Handling [form](https://www.mindstick.com/forum/6/multi-form-mfc-application) submissions in Knockout.js [applications](https://www.mindstick.com/articles/12847/how-to-choose-the-right-ethernet-cable-for-industrial-applications) involves capturing user input, updating the underlying view model, and potentially interacting with a server. The process typically includes using observables, binding form elements, and implementing functions to handle the form's submit event. Here's a step-by-step guide:
### 1. Create a View Model:
Define a view model with observables to track the form data.
```plaintext
function MyViewModel() {
this.username = ko.observable('');
this.password = ko.observable('');
}
```
### 2. Bind Form Elements:
Use the **data-bind** attribute to bind form elements to the corresponding observables.
```plaintext
```
### 3. Implement the Submit Function:
Define a function in your view model to handle the form submission. This function can perform any necessary actions, such as validation or making an AJAX request.
javascriptCopy code
```plaintext
function MyViewModel() {
this.username = ko.observable('');
this.password = ko.observable('');
this.submitForm = function () {
// Access form data
var usernameValue = this.username();
var passwordValue = this.password();
// Perform actions like validation or AJAX request
// ...
// Prevent the default form submission
return false;
};
}
```
### 4. Submit Binding:
Use the **submit** binding to associate the form submission with the **submitForm** function.
```plaintext
```
### 5. Prevent Default Submission:
Within the **submitForm** function, use **return false;** to prevent the default form submission. This is crucial when handling the submission asynchronously or when you want to control the submission process manually.
```plaintext
this.submitForm = function () {
// ...
// Prevent the default form submission
return false;
};
```
### Complete Example:
```plaintext
Knockout.js Form Submission
```
In this example, the **submitForm** function handles the form submission, and the **return false;** statement prevents the default form submission. You can customize the **submitForm** function based on your specific requirements, such as validation or making an asynchronous request.
---
Original Source: https://www.mindstick.com/forum/157866/how-do-you-handle-form-submissions-in-knockoutjs-applications
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