What is the difference between undeclared & undefined?


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More JavaScript Interview Questions

where we use javascript and for which purpose we use javascript how?

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what will happen and why if i will acess the methods of superclass which is declared as private by a object of same subclass.

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What are JavaScript types?

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How do I open javascript on my iphone?

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Which built-in method returns the character at the specified index?

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Is javascript necessary?

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In javascript chained select menus are available.first select menu is worked and others are disabled.when we select any one option then the next select menu will worked having option releated to selcted in first select menu.How it possible? what is the coading of this programme?

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What is enum size?

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How can I prevent others from reading/stealing my scripts or images?

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What is data types in javascript?

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What are JavaScript Cookies?

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Which keyword is used to print the text in the screen?

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