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Test Salesforce JavaScript-Developer-I Assessment - Latest Test JavaScript-Developer-I Experience

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To be eligible to take the Salesforce JavaScript-Developer-I Exam, candidates must have at least six months of experience in developing client-side JavaScript applications on the Salesforce platform. Additionally, candidates should have a good understanding of the Salesforce platform and its various components, including Apex, Visualforce, and Lightning Web Components.

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q128-Q133):

NEW QUESTION # 128
A developer writes the code below to calculate the factorial of a given number function sum(number){ return number * sum(number-1);
}
sum(3);
what is the result of executing the code.

A. 0
B. 1
C. -Infinity
D. Error

Answer: D

NEW QUESTION # 129
Refer to the code below:
const event = new CustomEvent(
//Missing Code
);
obj.dispatchEvent(event);
A developer needs to dispatch a custom event called update to send information about
recordId.
Which two options could a developer insert at the placeholder in line 02 to achieve this?
Choose 2 answers

A. { type : 'update', recordId : '123abc' }
B. 'Update' , {
Details : {
recordId : '123abc'
C. 'Update' , (
recordId : '123abc'
(
D. 'Update' , '123abc'

Answer: B,C

Explanation:
}
}

NEW QUESTION # 130
Refer to the code below:
Const pi = 3.1415326,
What is the data type of pi?

A. Number
B. Decimal
C. Float
D. Double

Answer: A

NEW QUESTION # 131
Refer to the code below:
Let inArray - [ [1, 2] , [3, 4, 5] ];
Which two statements result in the array [1, 2, 3, 4, 5 ]?

A. [ ] . concat. Apply ( [ ], inArray) ;
B. [ ] . concat. Apply (inArray, [ ] );
C. [ ] . concat. ( ... inArray) ;
D. [ ]. Concat ( [...InArray] );

Answer: A,D

NEW QUESTION # 132
Given the code below:
01 function GameConsole (name) {
02 this.name = name;
03 }
04
05 GameConsole.prototype.load = function(gamename) {
06 console.log( ` $(this.name) is loading a game : $(gamename) ...`);
07 )
08 function Console 16 Bit (name) {
09 GameConsole.call(this, name) ;
10 }
11 Console16bit.prototype = Object.create ( GameConsole.prototype) ;
12 //insert code here
13 console.log( ` $(this.name) is loading a cartridge game : $(gamename) ...`);
14 }
15 const console16bit = new Console16bit(' SNEGeneziz ');
16 console16bit.load(' Super Nonic 3x Force ');
What should a developer insert at line 15 to output the following message using the
method ?
> SNEGeneziz is loading a cartridge game: Super Monic 3x Force . . .

A. Console16bit = Object.create(GameConsole.prototype).load = function
(gamename) {
B. Console16bit.prototype.load = function(gamename) {
C. Console16bit.prototype.load(gamename) = function() {
D. Console16bit.prototype.load(gamename) {

Answer: B

NEW QUESTION # 133
......

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