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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Using Comparison Operators

Shawn Wilson
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Shawn Wilson
iOS Development Techdegree Student 7,049 Points
Posted by Shawn Wilson
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Shawn Wilson
iOS Development Techdegree Student 7,049 Points

Not sure where I'm going wrong here.. help please.

So see the challenge question and my solution below.

Q: Add a conditional statement that tests if the value in the variable a is greater than the value in variable b. If it is, pop up an alert with the message 'a is greater than b'; also add an else clause that pops up the message 'a is not greater than b'.

my solution:

var a = 10; var b = 20; var c = 30;

if (parseInt( a ) > parseInt( b ) ) { alert('a is greater than b'); } else { alert('a is not greater than b'); }

the error i receive from treehouse checker tool is:

" Bummer! Did you use the > symbol to test if a is greater than b? "

script.js 
var a = 10;
var b = 20;
var c = 30;
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>
Gary Ford
Gary Ford
14,475 Points
Gary Ford
Gary Ford
14,475 Points

Try:

if( a > b ) { 
    alert( a + ' is greater than ' + b); 
}else { 
    alert(a + ' is not greater than ' + b);
}

no need to use parseInt() (the variable values are already integers). Also use concatenation for your string that is shown in your alert box.

1 Answer

Carlos Estrada
Carlos Estrada
6,959 Points
Carlos Estrada
Carlos Estrada
6,959 Points

Try using just the variables w/o the 'parseInt(...)' function inside the 'if' statement. That function takes a string as a parameter and returns an int. In your case the variables are already integers and there is no need to convert them.