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Salesforce Certified JavaScript Developer I Exam
- Topic 1: Given a scenario and requirements, distinguish which Node.Js Package Management solution is the most fitting/ Given a business requirement, utilize strings, numbers, and dates effectively
- Topic 2: Given a JavaScript module, give examples of how to use the module/ Given a scenario, write code to create variables and initialize them correctly
- Topic 3: Given a scenario and requirements, infer which Node.js CLI command is a good solution/ Given a list of data, demonstrate data manipulation with arrays
- Topic 4: Given a business requirement, utilize Events, event handlers and propagation/ Given a specific scenario, distinguish truthy or falsey evaluations
- Topic 5: Demonstrate awareness of type coercion and its effects/ Given a block of code, analyze the variable scope and the execution flow
- Topic 6: Given a JavaScript decorator, give examples of how to use the decorator/ Use event loop and event monitor or determine loop outcomes
- Topic 7: Apply fundamentals of class implementation to solve the business requirement/ Know the core Node.js modules and given requirements, infer which Node.js library/framework is a good solution
- Topic 8: Apply fundamentals of object implementation to solve the business requirement/ Utilize the Browser Dev Tools to investigate code behavior
- Topic 9: Given a scenario and requirements, infer which Node.js implementation is a good solution/ Given a JSON response, demonstrate how to operate the JSON object
Free Salesforce Salesforce Certified JavaScript Developer I Exam Actual Questions
The questions for Salesforce Certified JavaScript Developer I were last updated On Jul. 26, 2022
At Universal Containers, every team has its own way of copying JavaScript objects. The code snippet shows an Implementation from one team:
What is the output of the code execution?
Refer to the code below
let inArray = [[1,2],[3,4,5]];
which two statements results in the array [1,2,3,4,5]?
choose 2 answer
A developer has two ways to write a function:
Option A:
function Monster(){
this.growl = ()=>{
console.log('Grr!');
}
}
Option B:
function Monster(){};
Monster.prototype.growl = ()=>{
console.log('Grr!');
}
After deciding on an option, the developer creates 1000 monster objects.
How many growl methods are created with Option A and Option B?
Refer to the following code:
class Vehicle{
constructor(plate){
this.plate = plate;
}
}
class Truck extends Vehicle{
constructor(plate, weight){
//Missing code
this.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 a
weight of 5000lb.
Refer to the code below:
const car = {
price:100,
getPrice:function(){
return this.price;
}
};
const customCar = Object.create(car);
customCar.price = 70;
delete customCar.price;const result = customCar.getPrice();
What is the value of result after the code executes?
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