html - Else block of javascript program always executes even If block is true -

else block keeps executing if true. if remove else block program works fine. want check if user not in record prints not found.

var students =   [  	{  		name: "linda",  		track: "ios",  		points:' 50'  	},  	{  		name: "brian",  		track: "android",  		points: '80'  	},  	{  	    name: 'trish',  	    track: 'rails development',  	    points: '350'  	}  ];     		var search = " ";    		var student;    		var message = " ";    	function print ( msg )  	{  		var output = document.getelementbyid("output");  		output.innerhtml = msg;  	}    	function studentreport( student )  	{  		var report 	= "<h2> student name: " + " " + student.name + "</h2>";  			report += "<p>  student track: " + " " + student.track+ "</p>";  			report += "<p>  student points: "+ " " + student.points+ "</p>";  			return report;  	}     	var button = document.getelementbyid("search");    		/*search = prompt("enter name search database or type quit exit");*/  		button.onclick = function( )  	{  		  		search = document.getelementbyid("txtfield").value;  		for( var = 0; < students.length; i++ )  		{  			student = students[i];    			if( student.name.tolowercase() === search.tolowercase() )  			{  				message = studentreport(student);  				print(message);  			}  			  			else  			{  				message = "<h2> student not found </h2>";  				print( message);  			}    		}    		  		  	}  		

<div class="container">  		<form action="#">  			<input type="text" name="search" id="txtfield"><!--  			--><a href="#" id="search"> search </a>  		</form>  		    	<div id="output">    	</div>    	</div>

by removing else part program search names , displays student records. else part should check if student not present in array prints not found.

add break; if statement, loop stops evaluating. otherwise, last result update html.