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21 cze 2015 · ...you can read an HTML form directly as FormData: const formElement = document.querySelector('form'); const formData = new FormData(formElement); console.log(formData.get('username')); ...you can use FormData directly as a fetch body:
16 paź 2024 · You can also get the form's element by using its name attribute as a key of the form, but using elements is a better approach—it contains only the form's elements, and it cannot be mixed with other attributes of the form.
6 mar 2024 · The get() method of the FormData interface returns the first value associated with a given key from within a FormData object. If you expect multiple values and want all of them, use the getAll() method instead.
11 cze 2023 · 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!
It provides a 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. For example and more, see its dedicated page: How to use FormData and send multipart-data in the Browser (Web API )?
The form-data can be sent as URL variables (with method="get") or as HTTP post transaction (with method="post"). The default HTTP method when submitting form data is GET.
Access named form elements by name, relative to their parent form element: document.getElementById("myform").foo; My main issue with this method is that the name attribute is useless when applied to a form.
