I have a HTML form and I need to display the form field values below the form after user clicks the submit button. How can I do this using HTML and JavaScript Ajax?

If you want to retrieve the form values (such as those that would be sent using an HTTP POST) you can use FormData class: JavaScript. e.preventDefault(); var formData = new FormData(form); // output as an object. console.log(Object.fromEntries(formData)); // ...or iterate through the name-value pairs. for (var pair of formData.entries()) {

Jun 12, 2013 · I think it's also useful to note that you can grab an existing form's data using: var formData = new FormData(formElement). If you are using JQuery, you can therefore do this: var formData = new FormData($('#formElementID')[0]) .

JavaScript can "display" data in different ways: Writing into an HTML element, using innerHTML or innerText. Writing into the HTML output using document.write(). Writing into an alert box, using window.alert(). Writing into the browser console, using console.log(). To access an HTML element, you can use the document.getElementById(id) method.

Sep 10, 2021 · Using the FormData object is a very good way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest.send () method. It uses the same format a form would use if the encoding type were set to “multipart/form-data”.

Jun 22, 2021 · We can either create new FormData(form) from an HTML form, or create an object without a form at all, and then append fields with methods: formData.append(name, value) formData.append(name, blob, fileName)

Feb 17, 2024 · We iterate over the form elements and construct a JavaScript object (formData) where keys are the field names and values are the field values. Finally, we dynamically generate HTML to display the submitted values on the same page.

Jun 11, 2023 · So you have an HTML form but want to do the processing in Javascript instead? Create the HTML form as usual – Give the form an ID, and attach a name to the input fields. Create a form data object, and feed the HTML form in as a parameter. That covers the quick basics, but read on for more examples!

Sep 29, 2023 · In this comprehensive guide, we’ve covered multiple methods for retrieving HTML form values in JavaScript. Whether you’re accessing form elements by ID, using the form element itself, serializing form data, or leveraging JavaScript frameworks, you now have the tools to gather and work with user-inputted data effectively.

JavaScript provides a powerful tool for managing form data through the FormData API. In this guide, we'll delve into the depths of FormData, exploring its capabilities, syntax, and best practices for implementation.