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chapter2.js
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chapter2.js
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/*Write a loop that makes seven calls to console.log to output the following triangle:
#
##
###
####
#####
######
#######
*/
var toPrint = "";
for (var i = 0; i < 7; i ++) {
toPrint += "#";
console.log(toPrint);
}
/* Write a program that uses console.log to print all the numbers from 1 to 100,
with two exceptions. For numbers divisible by 3, print "Fizz" instead of the number,
and for numbers divisible by 5 (and not 3), print "Buzz" instead.
When you have that working, modify your program to print "FizzBuzz",
for numbers that are divisible by both 3 and 5 (and still print "Fizz" or "Buzz"
for numbers divisible by only one of those). */
for (var i = 1; i <= 100; i++) {
var text = "";
if (i % 3 == 0) {
text += "Fizz";
}
if (i % 5 == 0) {
text += "Buzz";
}
console.log(text||i);
}
/* Write a program that creates a string that represents an 8×8 grid, using newline characters
to separate lines. At each position of the grid there is either a space or a “#” character.
The characters should form a chess board.
Passing this string to console.log should show something like this:
# # # #
# # # #
# # # #
# # # #
# # # #
# # # #
# # # #
# # # #
When you have a program that generates this pattern, define a variable size = 8 and change the
program so that it works for any size, outputting a grid of the given width and height. */
var size = 8, text = "";
for (var i = 0; i < size; i++) {
for (var j = 0; j < size; j++) {
if ((i + j) % 2 == 0) {
text += " ";
}
else {
text += "#";
}
}
text += "\n";
}
console.log(text);