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[General] JavaScript-Developer-I Real Dumps - Reliable JavaScript-Developer-I Exam Cram

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【General】 JavaScript-Developer-I Real Dumps - Reliable JavaScript-Developer-I Exam Cram

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q130-Q135):NEW QUESTION # 130
Refer to the code below:

What is the output of this function when called with an empty array?
  • A. Return NaN
  • B. Return Infinity
  • C. Return 5
  • D. Return 0
Answer: C

NEW QUESTION # 131
A developer wants to set up a secure web server with Node.js. The developer creates a
directory locally called app-server, and the first file is app-server/index.js
Without using any third-party libraries, what should the developer add to index.js to create the
secure web server?
  • A. const https =require('https');
  • B. const server =require('secure-server');
  • C. const http =require('http');
  • D. const tls = require('tls');
Answer: A

NEW QUESTION # 132
A developer wants to set up a secure web server with Node.js. The developer creates a directory locally called app-server, and the first file is app-server/index.js Without using any third-party libraries, what should the developer add to index.js to create the secure web server?
  • A. const https =require('https');
  • B. const server =require('secure-server');
  • C. const http =require('http');
  • D. const tls = require('tls');
Answer: A

NEW QUESTION # 133
A developer uses a parsed JSON string to work with user information as in the block below:
01 const userInformation ={
02 " id " : "user-01",
03 "email" : "user01@universalcontainers.demo",
04 "age" : 25
Which two options access the email attribute in the object?
Choose 2 answers
  • A. userInformation.get("email")
  • B. userInformation(email)
  • C. userInformation("email")
  • D. userInformation.email
Answer: C,D

NEW QUESTION # 134
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
  • A. { type : 'update', recordId : '123abc' }
  • B. 'Update' , {
    Details : {
    recordId : '123abc'
  • C. 'Update' , (
    recordId : '123abc'
    (
  • D. 'Update' , '123abc'
Answer: B,C
Explanation:
}
}

NEW QUESTION # 135
......
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