JavaScript - Real Time Search

Submitted by razormist on Friday, August 2, 2019 - 11:29.
In this tutorial we will create a Real Time Search using JavaScript. This code will search a specific data every time the user enter some characters in the textbox. The code use onclick() function to call a specific function that automatically filter the data when entered, by using a for() loop and adding a if statement with an argument indexOf() in order to filter the index position of an array. Feel free to modify and apply it in your system, this is a user-friendly kind of program We will be using JavaScript as a server-side scripting language because It gives a greater control of your web page and extend its capability in a modern way approach. It is written in HTML or as an external sourcing to add some necessary features in your website.

Getting started:

First you have to download bootstrap framework, 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 it 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 - Real Time Search</h3>
  16. 		<hr style="border-top:1px dotted #ccc;"/>
  17. 		<div class="col-md-4">
  18. 			<div class="form-group">
  19. 				<label>Enter a name</label>
  20. 				<div class="input-group">
  21. 					<div class="input-group-addon"><span class="glyphicon glyphicon-search"></span></div>
  22. 					<input type="text" id="search" placeholder="Search here..." onkeyup="liveSearch()" class="form-control"/>
  23. 				</div>
  24. 			</div>
  25. 		</div>
  26. 		<div class="col-md-8">
  27. 			<table class="table table-bordered">
  28. 				<thead class="alert-info">
  29. 					<tr>
  30. 						<th>Full Name</th>
  31. 					</tr>
  32. 				</thead>
  33. 				<tbody id="result"></tbody>
  34. 			</table>
  35. 			<ul class="list-group" id="list"></ul>
  36. 		</div>
  37. 	</div>
  38. <script src="js/script.js"></script>
  39. </body>
  40. </html>

Creating the Script

This code contains the script of the application. This code will search a data when entered. To do this just copy and write these block of codes inside the text editor, then save it as script.js inside the js folder. 
  1. var members = ['Tony Stark', 'Steve Rogers', 'John Smith', 'Claire Temple', 'Grace Toha', 'James Yhup', 'Isko Morren', 'Natalya Flash'];
  2.  
  3. displayMember();
  4.  
  5. function displayMember(){
  6. 	members.sort(function(a,b){
  7. 		if(a < b){
  8. 			return -1;
  9. 		}
  10.  
  11. 		if(a > b){
  12. 			return 1;
  13. 		}
  14.  
  15. 		return 0;
  16. 	});
  17.  
  18. 	data = "";
  19.  
  20. 	for(var i=0; i < members.length; i++){
  21. 		data += "<tr><td>"+members[i]+"</td></tr>";
  22. 	}
  23.  
  24. 	document.getElementById('result').innerHTML = data;
  25. }
  26.  
  27. function liveSearch(){
  28. 	var search=document.getElementById('search').value.toLowerCase();
  29. 	var parent=document.getElementById("result");
  30. 	var children=parent.getElementsByTagName('tr');
  31.  
  32. 	for(var i=0; i<children.length; i++){
  33. 		var keyword=children[i].innerText;
  34. 		if(keyword.toLowerCase().indexOf(search)>-1){
  35. 			children[i].style.display="";
  36. 		}else{
  37. 			children[i].style.display = "none";
  38. 		}
  39. 	}
  40.  
  41. }
There you have it we successfully created a Real Time Search 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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