Web-Based Practice Test Salesforce JavaScript-Developer-I Exam Questions

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Salesforce is a leading provider of customer relationship management (CRM) software solutions that are designed to help businesses manage their customer interactions and improve their overall customer service. As a Salesforce developer, it is important to have a strong understanding of JavaScript, as it is one of the most widely used programming languages for building web applications.

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JavaScript-Developer-I Certified Questions & JavaScript-Developer-I Learning Mode

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Salesforce JavaScript-Developer-I exam is designed to test the skills and knowledge of developers who specialize in JavaScript development on the Salesforce platform. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is perfect for developers who want to demonstrate their expertise in building custom applications using JavaScript on the Salesforce platform. JavaScript-Developer-I Exam covers a variety of topics, including Apex, Visualforce, and Lightning Web Components, and is designed to test a developer's ability to design, develop, and maintain custom applications on the Salesforce platform.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q76-Q81):

NEW QUESTION # 76
Given the code below:
Const copy = JSON.stringify((new String ('false') , new Bolean(false) undefined)); What is the value of copy?

A. -- [\''false\", ()""
B. --[ false, ()]-
C. -- [ \'false\'', false, undefined]'' ''
D. -- [\''false\'', false, null]" "

Answer: D

NEW QUESTION # 77
Which statement accurately describes an aspect of promises?

A. Agruments for the callback function passed to .then ( ) are optional.
B. .then ( ) manipulates and returns the original promise.
C. .Them ( ) cannot be added after a catch.
D. In a , them ( ) function, returning results is not necessary since callback will catch the result of a previous promise.

Answer: A

NEW QUESTION # 78
Which three browser specific APIs are available for developers to persist data between page loads ?
Choose 3 answers

A. Cookies
B. localStorage.
C. Global variables
D. IIFEs
E. indexedDB

Answer: B,D,E

NEW QUESTION # 79
Which statement parses successfully?

A. JSON.parse (""foo'");
B. JSON. parse (""foo"');
C. JSON.parse ("foo");
D. JSON.parse ("foo");

Answer: B

NEW QUESTION # 80
Refer to the code below:
<html lang="en">
<table onclick="console.log(Table log');">
<tr id="row1">
<td>Click me!</td>
</tr>
<table>
<script>
function printMessage(event) {
console.log('Row log');
}
Let elem = document.getElementById('row1');
elem.addEventListener('click', printMessage, false);
</script>
</html>
Which code change should be made for the console to log only Row log when 'Click me! ' is
clicked?

A. Add.event.stopPropagation(); to window.onLoad event handler.
B. Add event.removeEventListener(); to window.onLoad event handler.
C. Add event.removeEventListener(); toprintMessage function.
D. Add event.stopPropagation(); to printMessage function.

Answer: D

NEW QUESTION # 81
......

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