Free Certified JavaScript Developer I Exam Braindumps
Salesforce Certified JavaScript Developer I Questions 61–65 (page: 14)

Which code statement correctly retrieves and returns an object from localStorage?

is below:
<input type="file" onchange="previewFile()">
<img src="" height="200" alt="Image Preview..."/>
The JavaScript portion is:
01 functionpreviewFile(){
02 const preview = document.querySelector(`img');
03 const file = document.querySelector(`input[type=file]').files[0]; 04 //line 4 code
05 reader.addEventListener("load", () => {
06 preview.src = reader.result;
07 },false);

08 //line 8 code
09 }
In lines 04 and 08, which code allows the user to select an image from their local computer , and to display the image in the browser?

A developer creates a genericfunction to log custom messages in the console. To do this, the function below is implemented.
01 function logStatus(status){
02 console./*Answer goes here*/{`Item status is: %s', status}; 03 }
Which three console logging methods allow the use of string substitution in line 02?

A developer wrote the following code:
01 let X = object.value;
03 try {
04 handleObjectValue(X);
05 } catch (error) {
06 handleError(error);
07 }
Thedeveloper has a getNextValue function to execute after handleObjectValue(), but does not want to execute getNextValue() if an error occurs. How can the developer change the code to ensure this behavior?

Refer to the code:



Given the code above, which three properties are set pet1? Choose 3 answers: