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Tutor profile: Rajat B.

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Rajat B.
Tech Lead at TravelShelf.in
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Questions

Subject: Web Development

TutorMe
Question:

How to align a div in horizontally middle of the web page?

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Rajat B.
Answer:

You have to provide a width to the div and make the left and right margin auto

Subject: Javascript Programming

TutorMe
Question:

What is a callback?

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Rajat B.
Answer:

JavaScript is a non blocking language. It means generally all used functions are asynchronous and a time taking code is executed in background. But to achieve synchronicity we pass the code we want to execute just after the time taking process in a function. and the function is passed as a parameter of the asynchronous function.

Subject: C++ Programming

TutorMe
Question:

What is a pointer in C++?

Inactive
Rajat B.
Answer:

A pointer is a variable that can store address of other variables. Pointer variables can be declared just like a normal variable but the datatype must have ' * ' as a after it. For eg int *P; here we have declared a pointer P that can stores address of an integer type variable. For eg int *P; int n=5; P=&n; // & is used to get the address of a variable. Here the address is being stored in a pointer

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