Need help with html and javascript code

I need help with html and javascript code.

I am building a landing page using a third-party builder, which gives out the page HTML. On the page, there is a form to collect tools, so whenever the submit button is clicked the leads data will be sent as a POST request to a particular trigger. This is the inbuilt functionality.

Now I wanted the user to land on a specific page after hitting the submit button I wanted two actions …

building code data form html javascript landing landing page leads page request tools will