Free 1D0-735 — JavaScript Specialist Exam Questions and Answers
JavaScript Specialist is exam 1D0-735, part of CIW certification from Certification Partners, a private company. Every CIW exam code is 1D0- plus three characters, and the block marks the series: 61x is the Web Foundations associate level, 62x web and mobile design, 7xx the development and media specialist exams, and 18x the newer artificial intelligence series. Question counts and pass marks are set per exam.
If you searched for 1D0-735 dumps, a 1D0-735 ExamTopics discussion or a free 1D0-735 PDF, this is the 1D0-735 — JavaScript Specialist question bank: practice questions with verified answers and explanations, a timed 1D0-735 practice test and updates whenever CIW changes the exam.
Last updated: October 27, 2026
- Exam code
- 1D0-735
- Provider
- CIW
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
A developer runs the following code when a visitor selects a theme on a page: sessionStorage.setItem("theme", "dark"); The visitor then opens the same page, from the same origin, in a new browser tab and the following code runs: var t = sessionStorage.getItem("theme"); What is the value of t?
Correct answer: C
Explanation
sessionStorage is scoped to a single tab, so a new tab gets its own empty storage area. getItem() returns null when the key does not exist, not undefined or an empty string. localStorage would have made the value visible in the new tab.
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Question #2
Consider the following code, which runs in a non-strict script in a browser: var counter = { count: 0, increment: function () { this.count++; } }; var fn = counter.increment; fn(); console.log(counter.count); What is written to the console?
Correct answer: C
Explanation
Once the method is copied to fn and called as a plain function, this refers to the global object, so the global count property becomes NaN. The count property of counter is never touched and stays 0. Calling counter.increment.bind(counter) would have produced 1.
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Question #3
Which organization publishes the ECMAScript specification on which the JavaScript language is based?
Correct answer: A
Explanation
Ecma International maintains the ECMAScript standard (ECMA-262) through its technical committee. The W3C defines web standards such as HTML and the DOM, and the IETF defines Internet protocols.
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Question #4
A developer adds a Cancel link to a form page. Clicking the link must send the visitor to the previously viewed page, exactly as the browser Back button does. Which statement should the click handler run?
Correct answer: A
Explanation
The history object of window provides back(), which loads the previous entry in the session history. There is no back() method on location, and go(1) moves forward rather than back. History is not a property of navigator or document.
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Question #5
What is the effect of setting the HttpOnly attribute on a cookie?
Correct answer: C
Explanation
HttpOnly hides the cookie from client-side scripts, which limits the damage a cross-site scripting attack can do to session cookies. The transport restriction is the Secure attribute, and lifetime and domain scope are controlled by other attributes.
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Question #6
Which scripting language is Microsoft's implementation of the ECMAScript standard, first shipped with Internet Explorer 3.0?
Correct answer: A
Explanation
JScript is Microsoft's implementation of ECMAScript and was Microsoft's counterpart to Netscape's JavaScript. ActionScript is also ECMAScript-based but was created by Macromedia (later Adobe) for Flash. VBScript is based on Visual Basic and does not follow ECMAScript, and TypeScript is a later superset that compiles to JavaScript.
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Question #7
What does document.getElementById("price") return when no element in the document has an id of "price"?
Correct answer: B
Explanation
getElementById returns a single element reference, or null when no element matches. Collection-returning methods such as getElementsByTagName return an empty HTMLCollection when nothing matches, which is the usual source of confusion. Checking the result against null before using it avoids a TypeError.
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Question #8
An img element has the id "logo". Which statement changes the image displayed by that element to banner.png?
Correct answer: A
Explanation
getElementById returns the img element, and assigning to its src property changes the image shown. The value property applies to form controls, and innerText changes text content, not an attribute. getElementsByName returns a collection, so setting src on it does not affect any single element.
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Question #9
A page loads two external scripts, lib.js and app.js, and app.js depends on functions defined in lib.js. The developer wants both files to download while the HTML is still being parsed and to run in order after parsing finishes. What should the developer do?
Correct answer: C
Explanation
The defer attribute downloads the script in parallel with parsing and runs deferred scripts in document order once parsing is complete. The async attribute also avoids blocking, but each script runs as soon as it arrives, so app.js could run before lib.js. Plain head scripts and synchronous requests both block parsing.
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Question #10
Which value of the type attribute creates an input element whose value is submitted with the form but is not displayed to the user?
Correct answer: B
Explanation
An input of type hidden is not rendered, yet its value is sent with the form. A password field is visible but masks the characters typed. Button and reset controls are visible and do not carry user data in the submission. Hidden values can still be read in the page source, so they must not hold secrets.
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Discussion
Explain your reasoning, not just the letterOther CIW certifications
- 1D0-621: CIW User Interface Designer (opens in a new tab)
- 1D0-541: CIW v5 Database Design Specialist (opens in a new tab)
- 1D0-61B: CIW Site Development Associate (opens in a new tab)
- 1D0-520: CIW v5 Site Designer (opens in a new tab)
- 1D0-610: CIW Web Foundations Associate (opens in a new tab)
- 1D0-61C — Network Technology Associate (opens in a new tab)
- 1D0-571: CIW v5 Security Essentials (opens in a new tab)
- 1D0-61A — Internet Business Associate (opens in a new tab)
- 1D0-623 — Social Media Strategist (opens in a new tab)
- 1D0-622 — Data Analyst (opens in a new tab)
- 1D0-625 — Multimedia Specialist (opens in a new tab)
- 1D0-624 — Mobile Application Developer (opens in a new tab)
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FAQ
Learn More: https://corp.ciwcertified.com/certifications/
- Q1: What is the 1D0-735 — JavaScript Specialist exam?
- A: 1D0-735 — JavaScript Specialist is a CIW certification exam. Judging by the questions in our bank, it concentrates on javascript.
- Q2: How should I prepare for 1D0-735 — JavaScript Specialist?
- A: Work through the 1D0-735 — JavaScript Specialist practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q3: Are these real 1D0-735 — JavaScript Specialist exam questions?
- A: They are drawn from officially released past questions and from community members who have sat 1D0-735 — JavaScript Specialist. Answers are verified and updated weekly.
- Q4: Where do I register for the 1D0-735 — JavaScript Specialist exam?
- A: Register through CIW directly at https://corp.ciwcertified.com/certifications/. Exampractice is not affiliated with CIW and does not administer the exam.
- Q5: Is there a free 1D0-735 — JavaScript Specialist sample?
- A: Yes. Every 1D0-735 — JavaScript Specialist page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q6: What are CIW Certification Exams?
- A: CIW (Certified Internet Webmaster) Certification Exams validate your expertise in various web technologies, including web development, design, networking, security, and administration. These certifications demonstrate your proficiency in creating and managing websites and web applications.
- Q7: Why should I pursue CIW Certification?
- A: CIW Certification enhances your professional credibility, showcasing your skills and knowledge in web technologies. This can lead to better job opportunities, higher salaries, and career advancement in web development, design, and IT fields.
- Q8: What are the benefits of CIW Certification?
- A: Benefits include recognition as a certified web professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest web technologies and best practices.
- Q9: Who should take CIW Certification Exams?
- A: Web developers, designers, network administrators, security professionals, and anyone involved in creating or managing websites and web applications should consider these certifications to validate their expertise and advance their careers.
- Q10: What types of CIW Certification Exams are available?
- A: CIW offers various certification paths, including:
- Q11: How do I prepare for CIW Certification Exams?
- A: Preparation can include official CIW training courses, study guides, practice exams, online tutorials, and hands-on experience with web technologies.
- Q12: Where can I take CIW Certification Exams?
- A: CIW Certification Exams can be taken at authorized Pearson VUE testing centers worldwide or online, providing flexibility to fit your schedule and location.
- Q13: How do CIW Certifications impact my career?
- A: CIW Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in web development, design, and IT.
- Q14: Are there any prerequisites for CIW Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior certifications. Check the specific requirements for each certification path on the CIW website.
- Q15: How often do I need to recertify for CIW Certifications?
- A: CIW Certifications typically do not have a mandatory recertification requirement, but staying updated with the latest web technologies and continuing professional development is recommended to maintain your skills and relevance in the industry.