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Salesforce JS-Dev-101 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Objects, Functions, and Classes: Covers function, object, and class implementations to meet business requirements, along with the use of modules, decorators, variable scope, and execution flow.
Topic 2
  • Server Side JavaScript: Covers Node.js implementations, CLI commands, core modules, and package management solutions for given scenarios.
Topic 3
  • Variables, Types, and Collections: Covers declaring and initializing variables, working with strings, numbers, dates, arrays, and JSON, along with understanding type coercion and truthy
  • falsy evaluations.
Topic 4
  • Debugging and Error Handling: Covers proper error handling techniques and the use of the console and breakpoints to debug code.

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Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q62-Q67):

NEW QUESTION # 62
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();
Whatis the value of result after the code executes?

Answer: B


NEW QUESTION # 63
Refer to code below:
console.log(0);
setTimeout(() => (
console.log(1);
});
console.log(2);
setTimeout(() => {
console.log(3);
), 0);
console.log(4);
In which sequence will the numbers be logged?

Answer: D


NEW QUESTION # 64
Consider type coercion, what does the following expression evaluate to?
True + 3 + '100' + null

Answer: A


NEW QUESTION # 65
Given the HTML below:

Which statement adds the priority-account css class to the Applied Shipping row?

Answer:

Explanation:
document.querySelector('#row-as').classList.add('priority-account');


NEW QUESTION # 66
Refer to the code below:
Let str = 'javascript';
Str[0] = 'J';
Str[4] = 'S';
After changing the string indexvalues, the value of str is 'javascript'. What is the reason for this value:

Answer: B


NEW QUESTION # 67
......

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