Free Salesforce Javascript-Developer-I Exam Questions
Absolute Free Javascript-Developer-I Exam Practice for Comprehensive Preparation
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Salesforce Javascript-Developer-I Exam Questions
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Provided By: Salesforce
- Exam: Salesforce Certified JavaScript Developer - Multiple Choice (JS-Dev-101)
- Certification: Javascript Developer
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Total Questions: 217
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Updated On: Sep 24, 2026
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Rated: 4.9 |
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Online Users: 434
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Question 1
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Refer to HTML below:The current status of an Order: <span id =''status''> In Progress </span>Which JavaScript statement changes the text 'In Progress' to 'Completed' ?
Answer: C
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Question 2
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Refer to the following code:class Vehicle{constructor(plate){this.plate = plate;}}class Truck extends Vehicle{constructor(plate, weight){//Missing codethis.weight = weight;}displayWeight(){console.log(`The truck ${this.plate} has a weight of ${this.weight}lb.`);}}let myTruck = new Truck('123Ab',5000);myTruck.displayWeight();Which statement should be added to missing code for the code to display 'The truck 123AB has aweight of 5000lb.
Answer: A
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Question 3
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Which javascript methods can be used to serialize an object into a string and deserializea JSON string into an object, respectively?
Answer: A
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Question 4
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A developer is working on an ecommerce website where the delivery date is dynamicallycalculated based on the current day. The code line below is responsible for this calculation.Const deliveryDate = new Date ();Due to changes in the business requirements, the delivery date must now be today'sdate + 9 days.Which code meets this new requirement?
Answer: A
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Question 5
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Considering type coercion, what does the following expression evaluate to?True + '13' + NaN
Answer: D
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