Discussion
Home ‣ Interview ‣ Technology Comments
- Question
What does isNaN function do?
- Correct Answer
- It Return true if the argument is not a number
- 1. What is mean by "this" keyword in javascript?
Options- A. It refers current object
- B. It referes previous object
- C. It is variable which contains value
- D. None of the above Discuss
- 2. Which of the following navigator object properties is the same in both Netscape and IE?
Options- A. navigator.appCodeName
- B. navigator.appName
- C. navigator.appVersion
- D. None of the above Discuss
- 3. Which of the following is added to prefs.js,when open a dialog box each time an error occurs?
Options- A. user_pref("javascript.classic.error_alerts", true);
- B. user_pref("javascript.classic.error_alerts ", false);
- C. user_pref("javascript.console.open_on_error ", false);
- D. user_pref("javascript.console.open_on_error ", true); Discuss
- 4. What does window.history object? Discuss
- 5. What are the different objects used in JavaScripts? Discuss
- 6. What is the difference between "==" and "==="? Discuss
- 7. What are the new features provided in HTML5? Discuss
- 8. Differentiate between Canvas and SVG. Discuss
- 9. What is SVG? Discuss
- 10. What is a Canvas? Discuss
Technology problems
Search Results
Correct Answer: It refers current object
Correct Answer: navigator.appCodeName
Correct Answer: user_pref("javascript.classic.error_alerts", true);
Correct Answer: The windowhistory object can be written without the window prefix To protect the privacy of the users, there are limitations to how JavaScript can access this object Some methods: historyback() - same as clicking back in the browser historyforward() - same as clicking forward in the browser
Correct Answer: JavaScripts uses a hierarchical structure that applies to the objects in a document There are some objects that show the relationship of one object to another using the language Window object: This is the topmost object in the hierarchy It represent the content area of browser window that consists of HTML documents Each frame is also a window that has some actions inside it Document object: This object gets loaded in a window and consists of objects of different kind in the model It consists of the content that will be written in the script Form object: Form objects are used for more interaction with the users It represents the form elements inside tag
Correct Answer: "==" checks equality only, "===" checks for equality as well as the type
Correct Answer: Some of the new features provided in HTML5 are: - It provides support for local storage - New form controls, like calendar, date, time, email, url, search -
Correct Answer: Some important differences between Canvas and SVG: - Canvas is resolution dependent while SVG is not - Canvas does not provide any support for event handlers while SVG does - Canvas is suitable for graphic-intensive games while SVG is not suitable for gaming - Canvas is suitable for small rendering areas while SVG is suitable for large rendering areas like Google maps
Correct Answer: - SVG is the abbreviation for Scalable Vector Graphics and is recommended by W3C - It is used to define vector-based graphics for the Web - The graphics are defined in XML format -An important quality of SVG graphics is that their quality is maintained even when they are zoomed or resized - All the element and attributes of SVG files can be animated
Correct Answer: Canvas is a rectangular area on a HTML page, specified with the tag
Comments
There are no comments.More in Interview:
Programming
Copyright ©CuriousTab. All rights reserved.