Quiz: Build a Simple Form App
Explore how to build and test a simple form app that handles user input and validation using JavaScript. This lesson helps you practice key concepts in HTML form elements, input handling, and creating interactive messages on the page, preparing you for real-world web development challenges.
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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