Disable the save button until changes are made?

1. How do I disable a button based on condition?
2. How do I disable the submit button until all fields are filled?
3. How do I disable a button until another button is clicked?

How do I disable a button based on condition?

To disable a button in JavaScript based on condition, utilize the “disabled” property with the “length” property, which will apply the functionality based on the length of input characters, or the “includes()” method with “document.

How do I disable the submit button until all fields are filled?

Just click f12 in your browser, find the submit button in the html, and then remove the disabled ! It will submit the form even if the inputs are empty.

How do I disable a button until another button is clicked?

You can just add "disabled" to your button, and then when the user locks in their answer, enable it again. Additionally, it's not best practice to split your JavaScript into a bunch of different script tags. Put them all in one place.