JavaScript Developer I exam

Which code change should be done for the console to log the following when 'Click me!' is clicked' > Row log > Table logA . Remove lines 13 and 14 B. Change line 10 to event.stopPropagation (false) ; C. Change line 14 to elem.addEventListener ('click', printMessage, true); D. Remove line...

Refer to the code below: const addBy =? const addByEight =addBy(8); const sum = addBYEight(50); Which two functions can replace line 01 and return 58 to sum? Choose 2 answersA . const addBy = function(num1){ return function(num2){ return num1 + num2; } B. const addBy = function(num1){ return num1 +...

Universal Containers recently launched its new landing page to host a crowd-funding campaign. The page uses an external library to display some third-party ads. Once the page is fully loaded, it creates more than 50 new HTML items placed randomly inside the DOM, like the one in the code below:...

Refer to the HTML below: Which JavaScript statement results in changing “ The Lion.”?A . document.querySelectorAll(‘$main $TONY’).innerHTML = ’“ The Lion B. document.querySelector(‘$main li:second-child’).innerHTML = “ The Lion ’; C. document.querySelector(‘$main li.Tony’).innerHTML = ’“ The Lion ’; D. document.querySelector(‘$main li:nth-child(2)’),innerHTML = “ The Lion. ’;View AnswerAnswer: A

Refer to the following object. How can a developer access the fullName property for dog?A . Dog.fullName B. Dog.fullName ( ) C. Dog, get, fullName D. Dog, function, fullNameView AnswerAnswer: A

Refer to the code below: let sayHello = () => { console.log (‘Hello, world!’); }; Which code executes sayHello once, two minutes from now?A . setTimeout(sayHello, 12000); B. setInterval(sayHello, 12000); C. setTimeout(sayHello(), 12000); D. delay(sayHello, 12000);View AnswerAnswer: A

In the browser, the window object is often used to assign variables that require the broadest scope in an application Node.js application does not have access to the window object by default. Which two methods are used to address this? Choose 2 answersA . Use the document object instead of...

Refer to code below: Let a =’a’; Let b; // b = a; console.log(b); What is displayed when the code executes?A . ReferenceError: b is not defined B. A C. Undefined D. NullView AnswerAnswer: C

Refer to the code below: const event = new CustomEvent( //Missing Code ); obj.dispatchEvent(event); A developer needs to dispatch a custom event called update to send information about recordId. Which two options could a developer insert at the placeholder in line 02 to achieve this? Choose 2 answersA . ‘Update’,...

Refer to the code: Given the code above, which three properties are set for pet1? Choose 3 answersA . name B. owner C. type D. canTalk E. sizeView AnswerAnswer: C,D,E