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Free Salesforce JS-Dev-101 Exam Questions

Absolute Free JS-Dev-101 Exam Practice for Comprehensive Preparation 

  • Salesforce JS-Dev-101 Exam Questions
  • Provided By: Salesforce
  • Exam: Salesforce Certified JavaScript Developer - Multiple Choice
  • Certification: Salesforce Certified Developer
  • Total Questions: 217
  • Updated On: Sep 25, 2026
  • Rated: 4.9 |
  • Online Users: 434
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  • Question 1
    • The developer has a function that prints ''Hello'' to an input name. To test this, thedeveloper created a function that returns ''World''. However the following snippet does not print '' Hello World''.

      Capture

      What can the developer do to change the code to print ''Hello World'' ?

      Answer: B
  • Question 2
    • Refer to the code below:
      new Promise((resolve, reject) => {
      const fraction = Math.random();
      if( fraction >0.5) reject('fraction > 0.5, ' + fraction);
      resolve(fraction);
      })
      .then(() =>console.log('resolved'))
      .catch((error) => console.error(error))
      .finally(() => console.log(' when am I called?'));

      Capture

      When does Promise.finally on line 08 get called?

      Answer: D
  • Question 3
    • 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?

      Answer: A
  • Question 4
    • A developer at Universal Containers creates a new landing page based on HTML, CSS, and
      JavaScript TO ensure that visitors have a good experience, a script named personaliseContext
      needs to be executed when the webpage is fully loaded (HTML content and all related files ), in
      order to do some custom initialization.
      Which statement should be used to call personalizeWebsiteContent based on the above
      business requirement?

      Answer: B
  • Question 5
    • developer is trying to convince management that their team will benefit from using
      Node.js for a backend server that they are going to create. The server will be a web server that
      handles API requests from a website that the team has already built using HTML, CSS, and
      JavaScript.
      Which three benefits of Node.js can the developer use to persuade their manager?
      Choose 3 answers:

      Answer: A,C
PAGE: 1 - 44
   
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