Final answer:
To set the value of a hidden field in JavaScript, select the element with document.getElementById() or document.querySelector() and assign the new value to the element's value property.
Step-by-step explanation:
To set the value of a hidden field in JavaScript, you should first locate the element by using a method such as document.getElementById() or document.querySelector(). Once the element is selected, you can assign the value directly to the value property of that element. Here is an example:
var hiddenField = document.getElementById('myHiddenField');
hiddenField.value = 'new value';
Make sure that the ID you pass to document.getElementById() matches the ID of your hidden field in the HTML code. This is a common approach to dynamically change the contents of an input field of type 'hidden'.
To set the value of a hidden field in JavaScript, you can use the value property of the field's DOM object. Here's an example:
document.getElementById('myHiddenField').value = 'Hello, World!';
This code uses the getElementById method to get the DOM object of the hidden field with the specified ID, and then assigns the value 'Hello, World!' to it. You can replace 'myHiddenField' with the actual ID of your hidden field and the value you want to set.