JavaScript - Count Vowels and Consonant in a Sentence

Submitted by razormist on Monday, January 21, 2019 - 22:13.
In this tutorial we will create a Count Vowels and Consonant in a Sentence using Javascript. JavaScript is a scripting or programming language that allows you to implement complex things on web pages. It is widely used in designing a stunning website. It is an interpreted programming language that has a capabilities of Object-Oriented. So Let's do the coding..

Getting started:

This is the link for the bootstrap that i used for the layout design https://getbootstrap.com/.

The Main Interface

This code contains the interface of the application. To create this just write these block of code inside the text editor and save this as index.html. 
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. 	<head>
  4. 		<meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
  5. 		<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
  6. 	</head>
  7. <body>
  8. 	<nav class="navbar navbar-default">
  9. 		<div class="container-fluid">
  10. 			<a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
  11. 		</div>
  12. 	</nav>
  13. 	<div class="col-md-3"></div>
  14. 	<div class="col-md-6 well">
  15. 		<h3 class="text-primary">JavaScript - Count Vowels and Consonant in a Sentence</h3>
  16. 		<hr style="border-top:1px dotted;"/>
  17. 		<div class="col-md-6">
  18. 			<div class="form-group">
  19. 				<textarea id="words" class="form-control" style="height:150px; resize:none;"></textarea>
  20. 			</div>
  21. 			<button onclick="countCheck();" class="btn btn-primary"><span class="glyphicon glyphicon-eye-open"></span> Check</button>
  22. 			<button onclick="reset();" class="btn btn-success"><span class="glyphicon glyphicon-refresh"></span> Reset</button>
  23. 		</div>
  24. 		<div class="col-md-6">
  25. 			<div id="result">
  26. 			</div>
  27. 		</dvi>
  28. 	</div>
  29. <script src="js/script.js"></script>
  30. </body>
  31. </html>

Creating the Script

This code contains the script of the application.This code will count all the vowels and consonant in a word. To do this just copy and write these block of codes as shown below inside the text editor and save it as script.js inside the js folder. 
  1. function reset(){
  2. 	document.getElementById('words').value = "";
  3. 	document.getElementById('result').innerHTML = "";
  4. }
  5.  
  6. function countCheck(){
  7. 	var words = document.getElementById('words').value;
  8.  
  9. 	if(words == ""){
  10. 		document.getElementById('result').innerHTML = "<center><label class='text-danger'>Please enter some word</label></center>";
  11. 	}else{
  12. 		document.getElementById('result').innerHTML = "<label style='font-size:24px;'>Vowels:</label> <label style='font-size:20px;' class='text-success'>"+vowels(words)+"</label><br /><label style='font-size:24px;'>Consonant:</label> <label style='font-size:20px;' class='text-success'>"+consonant(words)+"</label>";
  13. 	}
  14. }
  15.  
  16. function vowels(str){
  17. 	var vowels = "AEIOUaeiou";
  18. 	var count = 0;
  19.  
  20. 	for(var i=0; i < str.length; i++){
  21. 		if(vowels.indexOf(str[i]) !== -1){
  22. 			count++;
  23. 		}
  24. 	}
  25.  
  26. 	return count;
  27. }
  28.  
  29. function consonant(str){
  30. 	var consonant = "BCDFGHJKLMNPQRSTVWXYZbcdfghjklmnpqrstvwxyz";
  31. 	var count = 0;
  32.  
  33. 	for(var i=0; i < str.length; i++){
  34. 		if(consonant.indexOf(str[i]) !== -1){
  35. 			count++;
  36. 		}
  37. 	}
  38.  
  39. 	return count;
  40. }
There you have it we successfully created a Count Vowels and Consonant in a Sentence using Javascript. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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