I am having difficulty finding a solution for this problem.

I am using AJAX to pull in data from a CSV file that checks user input from a text box against an ID column in the CSV file and outputs the row from the CSV file to screen if a match is found.

I am using the $.each method to check all rows in the CSV file and everything works as expected until I add some code within the $.each method to check when user input does not match a row in the CSV file. When this happens I want to out put an error message to the user. 

I am using a simple If else statement to check: if a match exists then output data in a table row or if no match exists then output an error message to the user but when I add the else statement for no match the code fails even when a correct id is entered.

Can you tell me from my code where I'm going wrong please? Thank you.

2. // Search for STB Version ID match from userInput and display table row
3.     var populateDataTable = function(dataOutput) {
4. 
   
5.         if (userInput.val().length === 6 && userInput.val() !== 'Enter Version Number') {
6.             var html = [];
7.             $.each(dataOutput.results.rows, function(key, value) {
8. 
   
9.                 var stbVersionId = $.trim(value['STB Version ID']),
10.                     keySearch = $.trim(userInput.val());
11. 
    
12.                 if (keySearch === stbVersionId) {
13.                     console.log('Valid');
14.                     var rowHTML = ['<tr class="row">'];
15.                     rowHTML.push('<td>' + value['Model Number'] + '</td>');
16.                     rowHTML.push('<td>' + value['Box type'] + '</td>');
17.                     rowHTML.push('<td>' + value['Manufacturer'] + '</td>');
18.                     rowHTML.push('<td>' + value['Name/Style'] + '</td>');
19.                     rowHTML.push('<td>' + value['Operating System Version'] + '</td>');
20.                     rowHTML.push('<td>' + value['Manufacturer'] + '</td>');
21.                     rowHTML.push('</tr>');
22. 
    
23.                     html.push(rowHTML.join(''));
24. 
    
25. 
    
26.                     noData.hide();
27.                     return false;
28. 
    
29.                 } else if (keySearch !== stbVersionId) {
30.                     console.log('Invalid');
31. 
    
32.                     var userInputError = userInput.val().toUpperCase();
33. 
    
34.                     noData.html(
35.                         '<p>You Entered <span class="error">' + userInputError + '</span><br />' +
36.                         'No match found - Please enter a valid STB Version ID</p>'
37.                     );
38.                     userInput
39.                         .blur()
40.                         .addClass('error')
41.                         .val('Please enter a valid STD number');
42. 
    
43.                     return false;
44.                 }
45.                 return;
46.             });
47.             $('#dataTable tbody').html(html.join(''));
48.             userInput.blur();
49.         }
50.     };