JavaScript and Frameworks Quiz

Which of the following is the correct syntax for creating a new React component using a function?

• function MyComponent() { return

  Hello, World!

  ; }

• class MyComponent { return

  Hello, World!

  ; }

• var MyComponent = function { return

  Hello, World!

  ; }

• createComponent MyComponent() { return

  Hello, World!

  ; }

What is the correct way to make an AJAX GET request using jQuery?

• $.get('url', function(response) { console.log(response); });

• jQuery.GET('url', response => { console.log(response); });

• $.get('url').done(function(response) { console.log(response); });

• $.ajax({ method: 'GET', url: 'url', success: function(response) { console.log(response); }});

Which syntax is used to catch an exception in JavaScript?

• try { // code } error(e) { console.log(e); }

• try { // code } catch (e) { console.log(e); }

• try { // code } except(e) { console.log(e); }

• catch(e) { // code }

Which JDBC method is used to execute a SELECT SQL query and return the result set?

• executeQuery()

• executeSelect()

• getResult()

• runQuery()

Which of the following is the correct syntax for defining an XML element?

• value

• {element} value {/element}

• element[value]end

• [element] value [/element]

How do you include an external JavaScript file in a JSP page?

• 
  <script link="script.js"></script>

• <include src="script.js"></include>

• <script src="script.js"></script>
  

• <<jsp:include page="script.js"/>

  
  

Which of the following is the correct syntax to create a PreparedStatement in JDBC?

• PreparedStatement pstmt = conn.execute("SELECT * FROM users");

• PreparedStatement pstmt = conn.prepareStatement("SELECT * FROM users");

• Statement pstmt = conn.preparedStatement("SELECT * FROM users");

• Connection pstmt = conn.createPreparedStatement("SELECT * FROM users");

Which of the following is valid JSX syntax?

• Title

  <div class="container">

       <h1>Title</h1>

     </div>

  
  

• Titl<div className="container">

       <h1>Title</h1>

     </div>

  
  e

• <div className-container>

       <h1>Title</h1>

     </div>

  
  Title

• Title

  <div classname="container">

       <h1>Title</h1>

     </div>

  
  

What is the correct way to handle a POST request using AJAX in jQuery?

• $.post('url', data, function(response) { console.log(response); });

• $.ajax({ method: 'POST', url: 'url', data: data, success: function(response) { console.log(response); }});

• $.sendPost('url', data, function(response) { console.log(response); });

• $.post('url').then(response => { console.log(response); });

Which JavaScript function is used to convert an object into a JSON string?

• JSON.stringify()

• JSON.parse()

• JSON.objectToString()

• JSON.toString()