Question

Using JavaScript

You must submit a file, called indentation.js

indentation.js: program to indent

The following program is difficult to follow because of its indentation:

print ( "binary");
var n = Math.pow (2, 31) - 1;
var bits = 0;
while (n> 0) {
bits + = n & 1;
n >> = 1;
}
print ("Number of bits at 1:" + bits);
for (var i = 1; i <= bits; i ++) {
var str = "";
if (i% 3 == 0) {str + = "Fizz";}
if (i% 5 == 0) {str + = "Buzz";}
if (i% 3! = 0) if (i% 5! = 0)
str + = i;
print (str);
}
var x = 2;
var y = 4;
var z = 4;
for (var i = 0; i <x; i ++) {
for (var j = 0; j <y; j ++) {str = ""; for (var k = 0; k <z; k ++) {
str + = j == k? 'x': '';
}
print (str);} if (i <x - 1) print ("");

You must make the program above more readable by indenting each line correctly.

Remember that:

* The content of a conditional structure (for, if, while, ...) should be indented by one more level (4 spaces or a tab)

* There should be only one statement per line (and we do not put a "}" on the same line as an instruction)

* Nested structures require to indent more deeply the code:

// Code excluding conditional structures
print ( "test");

if (condition) {
    // Everything in this if should be indented by 4 spaces
    print ( "Hello");
    while (condition) {
        // Everything in this while is already indented
        // of 4 spaces and is indented by 4 other spaces = 8 spaces
        print ( "...");
    }
}

Answer 1

Please find the indented code (follow the screenshot) below.

CODE

print ( "binary");
var n = Math.pow (2, 31) - 1;
var bits = 0;
while (n > 0) {
bits += n & 1;
n >>= 1;
}
print ("Number of bits at 1:" + bits);
for (var i = 1; i <= bits; i ++) {
var str = "";
if (i % 3 == 0) {
str += "Fizz";
}
if (i% 5 == 0) {
str += "Buzz";
}
if (i % 3 != 0) {
if (i % 5 != 0) {
str += i;
}
print (str);
}
}
var x = 2;
var y = 4;
var z = 4;
for (var i = 0; i < x; i ++) {
for (var j = 0; j < y; j ++) {
str = "";
for (var k = 0; k < z; k ++) {
str += j == k ? 'x' : '';
}
print (str);
}
if (i < x - 1) {
print ("");
}
}