This post will show a simple Code in JavaScript to Multiply Numbers in a particular range.
If you're a beginner, then first try to run your first program in JavaScript.
Write the following code in any text file like Notepad, Notepad++.
Now, save this file as "amitJavascript.html"
<html>
<head><title>www.techterabyte.com javascript sample</title></head>
<script>
<!-- <script> tag is used to insert JavaScript into html document. -->
function multiplyNum(n) {
var i, mul = 1; // variable declaration
// loop to multiply numbers
for (i = 5; i <= n; i++) {
mul = mul*i;
}
// this will print the multiplication of numbers from number 5
alert("The multiplication of digits from 5 to "+ n + " is:\n\n\t " + mul);
}
</script>
<body>
<p style="font-weight: bold;">
www.techterabyte.com<br />
...Multiplication of numbers...</p>
<form name="MultiplicationForm">
Multiplication of the digits from 5 to
<input name="enterNum" type="text" />
<input onclick="multiplyNum(MultiplicationForm.enterNum.value)"
type="button" value="CalculateResult" />
</form>
</body>
</html>
The above can be explained as:
- for HTML tags refer my blog post for html i.e HTML Introduction
- <script> : this tag is used to insert JavaScript into html document
- !-- --> : these are used for comments
Now. open the above page(amitJavascript.html) under any Web Browser:
Output :(this will shown on the browser as web page)
Enter the maximum value and click on CalculateResult to generate multiplication result:
Through this you can multiply numbers in JavaScript by inserting <script> tag in HTML.
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