Salesforce Certified JavaScript Developer I (WI24) Practice Questions
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JavaScript-Developer-I FAQs
Front-end developers need a solid understanding of JavaScript. Proficiency in core concepts like DOM manipulation, event handling, and AJAX is crucial. Advanced knowledge in frameworks like React or Angular can be beneficial for complex projects.
To become a JavaScript developer quickly, follow these steps:
- Start with the basics.
- Practice coding regularly.
- Work on real projects.
- Learn from online resources.
- Join coding communities.
- Seek mentorship or take courses.
- Build a strong portfolio to showcase your skills.
- Apply for entry-level positions and internships.
To secure a role as a junior web developer, focus on a solid foundation in HTML5, CSS3, and JavaScript. Proficiency in these technologies, along with the ability to build and style web pages, create interactive features, and solve problems, is typically sufficient for entry-level positions.
Front-end developers should have a strong grasp of JavaScript. Familiarity with core concepts like DOM manipulation, event handling, and AJAX is essential. Proficiency in front-end frameworks like React, Angular, or Vue.js can be advantageous for more complex projects.
Obtaining the JavaScript-Developer-I certification demonstrates a Salesforce developer's proficiency in JavaScript, crucial for building dynamic, interactive Salesforce applications. This credential enhances a developer's resume, broadening job opportunities and potential for advancement in roles requiring client-side programming expertise.
The Salesforce JavaScript-Developer-I exam consists of 60 multiple-choice questions that candidates must answer within 105 minutes. The exam assesses a broad range of JavaScript skills applied within the Salesforce platform, testing both fundamental knowledge and practical application.
The Salesforce JavaScript-Developer-I exam focuses specifically on JavaScript programming within the Salesforce ecosystem, emphasizing client-side technologies. In contrast, Cisco's programming-related certifications generally target network programming, automation, and application development within Cisco's network infrastructure environments.
Job roles that can leverage the skills validated by the JavaScript-Developer-I certification include Salesforce Developer, Front-End Developer, Full Stack Developer, and Salesforce Technical Architect. These roles involve developing and optimizing interactive user interfaces and custom solutions within the Salesforce platform.
To stay relevant after passing the JavaScript-Developer-I exam, candidates should regularly update their knowledge, ideally every year, by studying the latest JavaScript features and Salesforce platform updates. Participating in continuing education and attending Salesforce events can also help maintain expertise.
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Salesforce Certified JavaScript Developer I (WI24) Questions and Answers
Given the JavaScript below:
01 function filterDOM (searchString) {
02 const parsedSearchString = searchString && searchString.toLowerCase() ;
03 document.quesrySelectorAll(‘ .account’ ) . forEach(account => (
04 const accountName = account.innerHTML.toLOwerCase();
05 account. Style.display = accountName.includes(parsedSearchString) ? /*Insert
code*/;
06 )};
07 }
Which code should replace the placeholder comment on line 05 to hide accounts that do
not match the search string?
Refer to the code below:
Const pi = 3.1415326,
What is the data type of pi?
The developer has a function that prints “Hello” to an input name. To test this, thedeveloper created a function that returns “World”. However the following snippet does not print “ Hello World”.
What can the developer do to change the code to print “Hello World” ?