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Actual JavaScript-Developer-I Test - Exam Questions JavaScript-Developer-I Vce

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q164-Q169):

NEW QUESTION # 164

Which code change should be done for the console to log the following when 'Click me!' is clicked'
> Row log
> Table log

A. Remove line 10
B. Change line 10 to event.stopPropagation (false) ;
C. Change line 14 to elem.addEventListener ('click', printMessage, true);
D. Remove lines 13 and14

Answer: A

NEW QUESTION # 165
Refer to code below:
Const objBook = {
Title: 'Javascript',
};
Object.preventExtensions(objBook);
Const newObjBook = objBook;
newObjectBook.author = 'Robert';
What are the values of objBook and newObjBook respectively ?

A. {author: "Robert", title: "javaScript}
{author: "Robert", title: "javaScript}
B. [title: "javaScript"] [title: "javaScript"]
C. {author: "Robert", title: "javaScript}
Undefined
D. {author: "Robert"}
{author: "Robert", title: "javaScript}

Answer: B

NEW QUESTION # 166
Refer to the code below:
Const searchTest = 'Yay! Salesforce is amazing!" ;
Let result1 = searchText.search(/sales/i);
Let result 21 = searchText.search(/sales/i);
console.log(result1);
console.log(result2);
After running this code, which result is displayed on the console?

A. > 5 > -1
B. > true > false
C. > 5 > 0
D. > 5 >undefined

Answer: D

Explanation:

NEW QUESTION # 167
A developer wants to use a try...catch statement to catch any error that countSheep () may throw and pass it to a handleError () function.
What is the correct implementation of the try...catch?
A)

A. Option
B. Option
C. Option
D. Option

Answer: A

NEW QUESTION # 168
Refer to the code below:

A developer uses a client that makes a GET request that uses a promise to handle the request, getRequest returns a promise.
Which code modification can the developer make to gracefully handle an error?
A)

A. Option A
B. Option C
C. Option D
D. Option B

Answer: A

NEW QUESTION # 169
......

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