First page Back Continue Last page Image

• First Loop In The Book

• window.onload = initAll;
• function initAll() {
• for (var i=0; i<24; i++) {
• var newNum = Math.floor(Math.random() * 75) + 1;
• document.getElementById("square" + i).innerHTML = newNum;
• }
• }

• Let’s break this down

• When the page loads call the initAll function

• Starting at index 0, increment by 1 each loop and continuing as long as the index in less than 24

• BTW, we also created a variable called "i" here

• We are getting a random number here, but I will explain this line in detail a few slides later

• Find the square with the id "squarei", keeping in mind "i" will be a number between 0 and 23

• Put the new random number we got on the grey line into the table square with the "squarei" id

• String Concatenation