What does the instanceof operator do?


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More JavaScript Interview Questions

HI friends .am Mohammed Riyash.JMC BCA Tricy. My doubt is. In some websites like bloomberg.com..etc. when MouseOver() action performed.the menuitems will be drop down..and hides when blur()action happened.any body give the code for that..

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What is unshift method in JavaScript?

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What is called variable?

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What is a callback url?

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List the comparison operators supported by javascript?

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Can you explain about screen object?

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Does spread operator deep copy?

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What does two exclamation marks mean in javascript?

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How to convert json string to object?

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What is break and continue statements?

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How many hours learn javascript?

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Is python better than javascript?

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