Infosys Certified JavaScript Developer

A JavaScript web application allows users to submit comments on articles. However, an attacker exploits a vulnerability in the comment submission form to inject a malicious script that steals users' session cookies. Which of the following best describes the type of attack and the appropriate mitigation strategy?

_________attack targets at gathering sensitive information pretending to be reputable source.

Javascript dynamically includes the malicious script provided by the user on the web page results in a ____.

Which of the following is a valid way to handle errors in an asynchronous function?

Select the incorrect statement about the modules in JavaScript:

Annie is developing a web application with one of the functionalities as getting the list of courses available for a particular semester. But the application returned an error as follows :

“fetchapi.html:11 Uncaught (in promise) TypeError: Failed to fetch”. A part of the code she had written is as follows :

		async function myFetchAPI() {
           let response = await fetch('http://localhost:4400/courses');//Line1
           if (response.ok) { 
               let json = await response.json();//Line2
               console.log(json)
           }
           else {
               console.log("HTTP-Error: " + response.status);
           }
      	}
		myFetchAPI();//Line3

Which of the lines can be modified such that a user-friendly error message can be recorded on the console?

Output of the following code is Good Morning, It's a bright sunny Day. Which feauture of eventHandling is responsible for the sequence in the output?

<div onclick="console.log('It's a bright sunny day)">
  <p onclick="console.log('Good Morning,')">
    Click here!
  </p>
</div>

Consider the below-mentioned code snippet. What will be the output of the following code snippet?

async function getData() { 
	await Promise.reject("Error occurred"); 
	return "Data"; 
} 
getData() 
	.then(console.log) 
	.catch(console.error);

Peter wants to use spaces as separators when converting the below array to a string. Fill in the blank at line 1 to discover the right approach.

let courses=['HTML', 'CSS', 'Java', 'Angular']; 

courses._____('  ');  //line 1 

What is the output of the following code snippet?

var arr=[3,2,,,5,7]; 
for(i=0;i<5;i++){
   console.log(arr[i]); 
}