Free Salesforce DEX602 Exam Questions

A developer is creating a simple webpage with a button. When a user clicks this buttonfor the first time, a message is displayed.The developer wrote the JavaScript code below, but something is missing. Themessage gets displayed every time a user clicks the button, instead of just the first time.01 function listen(event) {02 alert ( 'Hey! I am John Doe') ;03 button.addEventListener ('click', listen);Which two code lines make this code work as required?Choose 2 answers

Refer to the expression below:Let x = ('1' + 2) == (6 * 2);How should this expression be modified to ensure that evaluates to false?

Given the code below:01 function GameConsole (name) {02 this.name = name;03 }0405 GameConsole.prototype.load = function(gamename) {06 console.log( ` $(this.name) is loading a game : $(gamename) ...`);07 )08 function Console 16 Bit (name) {09 GameConsole.call(this, name) ;10 }11 Console16bit.prototype = Object.create ( GameConsole.prototype) ;12 //insert code here13 console.log( ` $(this.name) is loading a cartridge game : $(gamename) ...`);14 }15 const console16bit = new Console16bit(' SNEGeneziz ');16 console16bit.load(' Super Nonic 3x Force ');What should a developer insert at line 15 to output the following message using themethod ?> SNEGeneziz is loading a cartridge game: Super Monic 3x Force . . .

Considering type coercion, what does the following expression evaluate to?True + '13' + NaN

A developer creates a class that represents a blog post based on the requirement that aPost should have a body author and view count.The Code shown Below:Class Post {// Insert code hereThis.body =bodyThis.author = author;this.viewCount = viewCount;}}Which statement should be inserted in the placeholder on line 02 to allow for a variable to be setto a new instanceof a Post with the three attributes correctly populated?