Advanced JAVASCRIPT Interview Questions And Answers For Experienced

Read most commonly asked Advanced JAVASCRIPT Interview Questions And Answers For Experienced at top companies. All these questions are prepared by experts who are working in MNC & adviced to candidates to read Advanced JAVASCRIPT Interview Questions And Answers For Experienced to get success in job interview.

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What is JavaScript? View Answer
Enumerate the differences between Java and JavaScript? View Answer
What are JavaScript types? View Answer
What is the use of isNaN function? View Answer
Between JavaScript and an ASP script, which is faster? View Answer
What is negative infinity? View Answer
Is it possible to break JavaScript Code into several lines? View Answer
Which company developed JavaScript? View Answer
What are undeclared and undefined variables? View Answer
Write the code for adding new elements dynamically? View Answer
What are global variables? How are these variable declared and what are the problems associated with using them? View Answer
What is a prompt box? View Answer
What is ‘this’ keyword in JavaScript? View Answer
Explain the working of timers in JavaScript? Also elucidate the drawbacks of using the timer, if any? View Answer
Which symbol is used for comments in Javascript? View Answer
What is the difference between ViewState and SessionState? View Answer
What is === operator? View Answer
Explain how can you submit a form using JavaScript? View Answer
Does JavaScript support automatic type conversion? View Answer
How can the style/class of an element be changed? View Answer
Explain how to read and write a file using JavaScript? View Answer
What are all the looping structures in JavaScript? View Answer
What is called Variable typing in Javascript? View Answer
How can you convert the string of any base to integer in JavaScript? View Answer
Explain the difference between “==” and “===”? View Answer
What would be the result of 3+2+”7″? View Answer
Explain how to detect the operating system on the client machine? View Answer
What do mean by NULL in Javascript? View Answer
What is the function of delete operator? View Answer
What is an undefined value in JavaScript? View Answer
What are all the types of Pop up boxes available in JavaScript? View Answer
What is the use of Void(0)? View Answer
How can a page be forced to load another page in JavaScript? View Answer
What is the data type of variables of in JavaScript? View Answer
What is the difference between an alert box and a confirmation box? View Answer
What are escape characters? View Answer
What are JavaScript Cookies? View Answer
Explain what is pop()method in JavaScript? View Answer
Whether JavaScript has concept level scope? View Answer
Mention what is the disadvantage of using innerHTML in JavaScript? View Answer
What is break and continue statements? View Answer
What are the two basic groups of dataypes in JavaScript? View Answer
How generic objects can be created? View Answer
What is the use of type of operator? View Answer
Which keywords are used to handle exceptions? View Answer
Which keyword is used to print the text in the screen? View Answer
What is the use of blur function? View Answer
What is variable typing? View Answer
How to find operating system in the client machine using JavaScript? View Answer
What are the different types of errors in JavaScript? View Answer
What is the use of Push method in JavaScript? View Answer
What is unshift method in JavaScript? View Answer
What is the difference between JavaScript and Jscript? View Answer
How are object properties assigned? View Answer
What is the ‘Strict’ mode in JavaScript and how can it be enabled? View Answer
What is the way to get the status of a CheckBox? View Answer
How can the OS of the client machine be detected? View Answer
Explain window.onload and onDocumentReady? View Answer
How will you explain closures in JavaScript? When are they used? View Answer
How can a value be appended to an array? View Answer
Explain the for-in loop? View Answer
Describe the properties of an anonymous function in JavaScript? View Answer
What is the difference between .call() and .apply()? View Answer
Define event bubbling? View Answer
Is JavaScript case sensitive? Give an example? View Answer
What boolean operators can be used in JavaScript? View Answer
How can a particular frame be targeted, from a hyperlink, in JavaScript? View Answer
What is the role of break and continue statements? View Answer
Write the point of difference between web-garden and a web-farm? View Answer
How are object properties assigned? View Answer
What is the method for reading and writing a file in JavaScript? View Answer
How are DOM utilized in JavaScript? View Answer
How are event handlers utilized in JavaScript? View Answer
Explain the role of deferred scripts in JavaScript? View Answer
What are the various functional components in JavaScript? View Answer
Write about the errors shown in JavaScript? View Answer
What are Screen objects? View Answer
Explain the unshift() method ? View Answer
Define unescape() and escape() functions? View Answer
What are the decodeURI() and encodeURI()? View Answer
Why it is not advised to use innerHTML in JavaScript? View Answer
What does the following statement declares? View Answer
How are JavaScript and ECMA Script related? View Answer
What is namespacing in JavaScript and how is it used? View Answer
How can JavaScript codes be hidden from old browsers that don’t support JavaScript? View Answer

List of Advanced JAVASCRIPT Interview Questions And Answers For Experienced [UPDATED]

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  • These interview questions are prepared by experts working in top companies.
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