Input Checkbox Deed For Free

The value attribute on the checkbox is used when the form is interacting with a server. So when you set the value as lettuce, that means when the form is submitted and that box is checked, the value it sends back to the server is topping=lettuce .

Input Checkbox value Property Return the value of the value attribute of a checkbox: var x = document.getElementById("myCheck").value; Change the value associated with the checkbox: document.getElementById("myCheck").value = "newCheckboxValue"; Submitting a form - how to change the value associated with the checkbox:

The <input type="checkbox"> defines a checkbox. The checkbox is shown as a square box that is ticked (checked) when activated. Checkboxes are used to let a user select one or more options of a limited number of choices.

Return Value: It returns a string value that represents the value of the value attribute of a input checkbox field.

The checked attribute is a boolean attribute. When present, it specifies that an <input> element should be pre-selected (checked) when the page loads. The checked attribute can be used with <input type="checkbox"> and <input type="radio"> . The checked attribute can also be set after the page load, with a JavaScript.

Input Checkbox value Property Return the value of the value attribute of a checkbox: var x = document.getElementById("myCheck").value; Change the value associated with the checkbox: document.getElementById("myCheck").value = "newCheckboxValue"; Submitting a form - how to change the value associated with the checkbox:

If a checkbox is unchecked, it doesn't get sent, so setting it's value to 0 if it isn't checked isn't going to help - it will always return NULL.

The checked property sets or returns the checked state of a checkbox. This property reflects the HTML checked attribute.