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Salesforce CRT-600 Exam Syllabus Topics:

Topic Details
Topic 1
  • Asynchronous Programming
  • Callback Functions
  • Promises and Async
  • Await

Topic 2
  • Creating Objects, Object Prototypes, Defining Functions

Topic 3
  • Browser and Events
  • Document Object Model
  • Browser Dev Tools

Topic 4
  • Debugging and Error Handling
  • Throwing and Catching Errors
  • Working with the Console

Topic 5
  • Server Side JavaScript Debugging in Node.js, Node.js Libraries

Topic 6
  • Objects, Functions, and Classes
  • Using JavaScript Modules
  • Declaring Classes

Topic 7
  • Type Conversion (explicit and implicit)
  • Working with JSON
  • Data Types and Variables


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Quiz 2023 Salesforce Valid Test CRT-600 Online

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Salesforce Certified JavaScript Developer I Sample Questions (Q211-Q216):

NEW QUESTION # 211
myArraym can have one level, two levels, or more levels.
Which statement flattens myArray when it can be arbitrarily nested?

  • A. myArray. reduce ((prev, curr) => prev.concat(curr) [ ]);
  • B. [ ] .concat {. . .myArray) ;
  • C. myArray.flat(Infinity);
  • D. myArray. join (","). split (",");

Answer: A
NEW QUESTION # 212
Refer to the code:

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

  • A. Name
  • B. Owner
  • C. Size
  • D. canTalk
  • E. Type

Answer: C,D,E
NEW QUESTION # 213
Refer to the code below:

What is the value of result after line 10 executes?

  • A. John undefined
  • B. Error: myFather.job is not a function
  • C. John Developer
  • D. undefined Developer

Answer: C
NEW QUESTION # 214
A developer has an is Dog function that takes one argument cat. They want to schedule the function to run every minute.
What is the correct syntax for scheduling this function?

  • A. setInterval(isDog, 60000,'cat');

Answer: A
NEW QUESTION # 215
Refer to the code below:
01 const server = require('server');
02 /* Insert code here */
A developer imports a library that creates a web server. The imported library uses events and callbacks to start the servers Which code should be inserted at the line 03 to set up an event and start the web server ?

  • A. console.log( 'Listening on ', port) ;
  • B. server()
  • C. serve(( port) => (
  • D. Server.start ();
  • E. server.on(' connect ' , ( port) => {
    console.log('Listening on ' , port) ;})

Answer: E
NEW QUESTION # 216
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