Quiz: Build a Simple Form App
Explore how to build a simple form app that collects and validates user input using JavaScript, HTML forms, and buttons. This lesson helps you practice key concepts from the previous lesson to build interactive web pages and prepare for a real developer challenge ahead.
We'll cover the following...
We'll cover the following...
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Technical Quiz
1.
You want to check if a user has entered anything into a text input field with the id="email". Which check(s) is most likely to cause a mistake if the user just types spaces? Select all that apply. Multi-select
A.
if (document.getElementById("email").value !== "")
B.
if (document.getElementById("email").value.trim() !== "")
C.
if (document.getElementById("email").value.length > 0)
D.
if (document.getElementById("email").value)
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