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JavaScript Projects for Kids

You're reading from   JavaScript Projects for Kids Gear up for a roller-coaster ride into the world of JavaScript and programming with this easy-to-follow, fun, and entertaining project-based guide

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Product type Paperback
Published in Jan 2016
Publisher Packt
ISBN-13 9781785287176
Length 188 pages
Edition 1st Edition
Languages
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Author (1):
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Syed Omar Faruk Towaha Syed Omar Faruk Towaha
Author Profile Icon Syed Omar Faruk Towaha
Syed Omar Faruk Towaha
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Toc

If statement

Let's say John has 23 apples and Tom has 45 apples. We want to check who has more apples using JavaScript programming. We need to make our browser understand the if statement.

Note

The if statement compares two variables.

To check our condition, we need to declare the two variables containing the number of apples, as follows:

var john = 23;
var tom = 45;

To check which number is bigger, we can apply the if statement as shown in the following:

if(john > tom)
{
  alert("John has more apples than tom");
}

Let's say that we do not know which variable is bigger. Then, we need to check both the variables. Therefore, we need to include the following codes to our program:

if(tom > john )
{
  alert("Tom has more apples than John");
}

The whole code in an HTML page will be as follows:

<html>
  <head>
    <title>
      If statement
    </title>
  </head>
  <body>
    <script type="text/javascript">
      var...
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