Salesforce CRT-600 Exam Questions in PDF and Online

QUESTION: 16

A developer wants to iterate through an array of objects and count the objects and count the objects whose property value, name, starts with the letter N. Const arrObj = [{"name" : "Zach"} , {"name" : "Kate"},{"name" : "Alise"},{"name" : "Bob"},{"name" :
"Natham"},{"name" : "nathaniel"}
Refer to the code snippet below:
01 arrObj.reduce(( acc, curr) => {
02 //missing line 02
02 //missing line 03
04 ). 0);
Which missing lines 02 and 03 return the correct count?

Const sum = curr.startsWith(`N') ? 1: 0;
Return acc +sum
Const sum = curr.name.startsWith(`N') ? 1: 0;
Return acc +sum
Const sum = curr.startsWIth(`N') ? 1: 0;
Return curr+ sum
Const sum = curr.name.startsWIth(`N') ? 1: 0;
Return curr+ sum

Answer(s): B

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QUESTION: 17

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

super (body, author, viewCount) {
Function Post (body, author, viewCount) {
constructor (body, author, viewCount) {
constructor() {

Answer(s): C

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QUESTION: 18

Which three options show valid methods for creating a fat arrow function? Choose 3 answers

x => ( console.log(` executed ') ; )
[ ] => ( console.log(` executed ') ;)
( ) => ( console.log(` executed ') ;)
X,y,z => ( console.log(` executed ') ;)
(x,y,z) => ( console.log(` executed ') ;)

Answer(s): A,E

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QUESTION: 19

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 answers

`Update' , (
recordId : `123abc'
(
`Update' , `123abc'
{ type : `update', recordId : `123abc' }
`Update' , {
Details : {
recordId : `123abc'
}
}

Answer(s): A,D

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QUESTION: 20

Refer to the code below:

Const pi = 3.1415326,
What is the data type of pi?

Double
Number
Decimal
Float

Answer(s): B

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Salesforce Prepare for your JavaScript Developer I Certification Exam CRT-600 Exam Questions in PDF

Free Salesforce CRT-600 Dumps Questions (page: 4)

QUESTION: 16

QUESTION: 17

QUESTION: 18

QUESTION: 19

QUESTION: 20