Lecture Exercises

This repository is to store exercises from CS 7025 programming for digital media.

• Lab1-5 contain labs from the tutorial.
• lec1-10 contain exercises from the lectures.
• Lecture notes are WIP. They will be accessible in each fold as long as finished.

Lecture 4 DOM - Read from JSON and display the data

Event Listener

• hover
• click
• visit

// function something on clicking on the element
document.getElementById("id-of-the-element").addEventListener("click", function (ev) {  })

Lecture 5 Arrays - Switch to random image

• It will switch to a random pic by clicking at the button.
• It is realized by a random number, not an array.

Random Number in JS

// Returns a random integer from 0 to 100:
Math.floor(Math.random() * 101);

Get img src in JS

<img id="img-in-web" src="src/to/the/img" width=300 height=400>

// Get the source of image in HTML
var imgSrc = document.getElementById("img-in-web").src