Salesforce Certified JavaScript Developerの練習問題と確認済み解答

Salesforce Certification Candidate Code of Conduct NDA Terms At Salesforce, Trust is our #1 value. Ensuring the value and integrity of the Salesforce family of companies’ credential programs (Salesforce Certification) is one of our top priorities when it comes to delivering highly sought-after credentials in the industry. Protecting the security of Salesforce Certifications is up to all of us, and Salesforce has a zero-tolerance policy for misconduct related to certification exams. By participating in the Salesforce Certification Program, you are deemed to accept: the Salesforce Program Agreement and Acceptable Use Policy; this Code of Conduct; and the Program Terms for Learning and Credential Programs, all applicable voucher and coupon terms per the Certification Voucher Policies FAQ Help Article we do not provide item level feedback on exams. 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A developer is creating a simple webpage with a button. When a user clicks this button for the first time, a message is displayed. The developer wrote the JavaScript code below, but something is missing. The message gets displayed every time a user clicks the button, instead of just the first time. 01 function listen(event) { 02 03 alert('Hey! I am John Doe'); 04 05 } 06 button.addEventListener('click', listen); Which two code lines make this code work as required?

Refer to the code below: 01 console.log('Start'); 02 Promise.resolve('Success').then(function(value) { 03 console.log('Success'); 04 }); 05 console.log('End'); What is the output after the code executes successfully?

Refer to the code below: 01 let timedFunction = () => { 02 console.log('Timer called.'); 03 }; 04 05 let timerId = setTimeout(timedFunction, 1000); ​​​​​​​Which statement allows a developer to cancel the scheduled timed function?

Refer to the code below: 01 function foo() { 02 const a = 2; 03 function bar() { 04 console.log(a); 05 } 06 return bar; 07 } Why does the function bar have access to variable a ?

A developer has an ErrorHandler module that contains multiple functions. What kind of export should be leveraged so that multiple functions can be used?