Free Certified JavaScript Developer I Exam Braindumps
Salesforce Certified JavaScript Developer I Questions 46–50 (page: 11)

Refer to the following code:
Let obj ={
Foo: 1,
Bar: 2
}
Let output =[],
for(let something in obj{
output.push(something);
}
console.log(output);
What is the output line 11?

Refer to the code below?
Let searchString = ` look for this ';
Which two options remove the whitespace from the beginning of searchString? Choose 2 answers

Whichthree actions can be using the JavaScript browser console? Choose 3 answers:

In which situation should a developer include a try .. catch block around their function call ?

A class was written to represent items for purchase in an online store, and a secondclass Representing items that are on sale at a discounted price. THe constructor sets the name to the first value passed in. The pseudocode is below:
Class Item {
constructor(name, price) {
... // Constructor Implementation
}
}
Class SaleItem extends Item {

constructor (name, price, discount) {
...//Constructor Implementation
}
}
There is a new requirement for a developer to implement a description method that will return a brief description for Item and SaleItem.
Let regItem =new Item(`Scarf', 55);
Let saleItem = new SaleItem(`Shirt' 80, -1);
Item.prototype.description = function () { return `This is a ' + this.name; console.log(regItem.description());
console.log(saleItem.description());
SaleItem.prototype.description = function () { return `This is a discounted ' +

this.name; }
console.log(regItem.description());
console.log(saleItem.description());
What is the output when executing the code above ?