The Essential Guide to HTML5

QUIZ

Code Explanation

slots[i] = -100; Used values will be 0 to 19

} Close of for loop

for(i=0;i<nq;i++) { Start of for loop to choose nq country/capital pairs

Recall our nq is set to 4, 4 country-capital pairs

do {c = Math.floor(Math.

random()*facts.length);}

Start of do/while loop. What is in the brackets is done at

least once. The variable c is set to a random value 0 to 1

less than the length of the array.

while (facts[c][2]==true) Do this again if this inner array (country/capital pair) has
been chosen

facts[c][2]=true; Outside of loop, now set this country/capital pair array as
being used

uniqueid = "c"+String(c); Construct the id for the country block

d =
document.createElement

('country');

Create an html element of type country

d.innerHTML = ( Set its innerHTML to be

"<div class='thing'
id='"+uniqueid+"'>placeholder