📚 Topic Summary
JavaScript interactivity is what brings websites to life! Instead of just showing static text and images, JavaScript allows web pages to respond to user actions, like clicking a button or filling out a form. This is done by writing JavaScript code that listens for events (like a button click) and then executes a set of instructions. These instructions can do things like change the content of the page, send data to a server, or even create animations. For beginners, understanding the basics of how to handle button clicks and form submissions is key to creating dynamic and engaging web experiences.
🗂️ Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Event Listener |
A. A function that runs when a specific event occurs. |
| 2. Function |
B. A named section of code that performs a specific task. |
| 3. Variable |
C. A storage location with a name and a value. |
| 4. DOM |
D. The programming interface for HTML and XML documents. |
| 5. Form |
E. An HTML element used to collect user input. |
Answer Key
- 1 - A
- 2 - B
- 3 - C
- 4 - D
- 5 - E
✍️ Part B: Fill in the Blanks
Complete the following paragraph using the words: JavaScript, event, button, interactive, form.
To make a website truly __________, we use __________. We can add an __________ listener to a __________ so that when it's clicked, something happens. Similarly, we can use JavaScript to process data submitted through a __________.
Answer Key
To make a website truly interactive, we use JavaScript. We can add an event listener to a button so that when it's clicked, something happens. Similarly, we can use JavaScript to process data submitted through a form.
🤔 Part C: Critical Thinking
Imagine you're building a simple calculator. Describe the steps you would take to use JavaScript to make the addition button work. What event would you listen for? What JavaScript code would you write?