Practice Set - Conditionals & Blocks within Braces

by Rick Harraghy

HTML

<h3>Conditionals &amp; Blocks within Braces</h3>


<h4>2 Tasks for this Practice Set:</h4>

<ol>
    <li>Use conditionals to create code which outputs a sentence to the console stating whether the variable <i>x</i> is greater to, equal to, or less than zero. It should work for any numeric value of x</li>
    <li>Look at the code in this section, and fix it so that the output is correct. In your console, it should look like this (Hint: it involves braces) :
        <img src="http://courses.dce.harvard.edu/~cscie3/img/captains.png" title="program output" style="width:80%;padding-top:.5em;">
    </li>
</ol>

JavaScript

"use strict";

// Insert your code for #1 here
var x = 2;

if (!isNaN(x)) {
    // x is a numeric value
    if (x > 0) {
        console.log("X is greater than 0 - the value of x is " + x);
    }
    else if (x == 0) {
        console.log("X is equal to 0");
    }
    else {
        console.log("X is less than 0 - the value of x is " + x);
    }
} 
else {
    // x is not a numeric
    console.log("X is non-numeric - The value of x is " + x);
}    
    



// Insert your code for #2 here
var myCaptains = ["James T. Kirk", "Jean-Luc Picard", "Katherine Janeway"];

for (var i = 0; i < myCaptains.length; i++) {
myCaptains[i] = myCaptains[i].toUpperCase();
    console.log("The Captain in Capitals is " + myCaptains[i]);
}

console.log(i + " captains have been capitalized");