Updated Salesforce Certified JavaScript Developer I Exam Questions Cram - JavaScript-Developer-I Pdf Review & Salesforce Certified JavaScript Developer I Exam Examboost Vce
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Salesforce JavaScript-Developer-I certification exam is a multiple-choice exam that tests a developer's ability to use JavaScript to implement business logic and user interfaces in Salesforce applications. JavaScript-Developer-I exam consists of 60 questions and has a time limit of 105 minutes. To pass the exam, a developer must score at least 68% overall. JavaScript-Developer-I Exam covers a range of topics, including fundamentals of JavaScript, Apex and Visualforce, and the Lightning Component Framework. In addition to validating a developer's skills and knowledge, the Salesforce JavaScript-Developer-I certification can also help developers advance their careers and increase their earning potential.
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To pass the Salesforce JavaScript-Developer-I exam, you must have a deep understanding of JavaScript and its related technologies, as well as a solid understanding of the Salesforce platform. You will be tested on your ability to design, develop, test, and deploy custom applications that meet the specific needs of your clients. JavaScript-Developer-I Exam consists of 60 multiple-choice questions and you have 105 minutes to complete it. Upon passing the exam, you will receive the Salesforce Certified JavaScript Developer I credential, which will demonstrate your expertise in JavaScript development on the Salesforce platform.
Salesforce Certified JavaScript Developer I Exam Sample Questions (Q30-Q35):
NEW QUESTION # 30
A developer wants to use a try...catch statement to catch any error that countSheep () may throw and pass it to a handleError () function.
What is the correct implementation of the try...catch?
A)
B)
C)
D)
Answer: C
NEW QUESTION # 31
Refer to the string below:
const str = 'Salesforce';
Which two statements result in the word 'Sales'?
Choose 2 answers
Answer: B,D
NEW QUESTION # 32
A developer is setting up a Node,js server and is creating a script at the root of the source code, index,js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.
Which global variable can be used in the script?
Answer: C
NEW QUESTION # 33
Refer to the following array:
Let arr1 = [ 1,2, 3, 4, 5 ];
Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?
Answer: C,D
NEW QUESTION # 34
is below:
<input type="file" onchange="previewFile()">
<img src="" height="200" alt="Image Preview..."/>
The JavaScript portion is:
01 function previewFile(){
02 const preview = document.querySelector('img');
03 const file = document.querySelector('input[type=file]').files[0];
04 //line 4 code
05 reader.addEventListener("load", () => {
06 preview.src = reader.result;
07 },false);
08 //line 8 code
09 }
In lines 04 and 08, which code allows the user to select an image from their local
computer , and to display the image in the browser?
Answer: C
NEW QUESTION # 35
......
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