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Aman M.
Undergraduate student of Electronics at BITS PILANI, Quizzer, Full Stack Web developer,Social science enthusiastic(Indian and world history)
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Javascript Programming
TutorMe
Question:

Determine the output of the code below? var lorem= { ipsum : 1 }; var output = ( function() { delete loren.ipsum; return loren.ipsum; })(); console.log(output);

Aman M.
Answer:

The output would be undefined because the delete operator removed the property “Ipsum” from the object “lorem” before the object was returned. When you reference a deleted property, the result is undefined.

Java Programming
TutorMe
Question:

What will happen if you put System.exit(0) in try and catch block? Will finally block execute?

Aman M.
Answer:

By calling System.exit(0) in try and catch block, we can skip the finally block.System.exit(in) can throw SecurityException. If System.exit(0) exit the JVM without throwing that exception then finally block will not execute. But, if System.exit(0) does throw security exception then finally block will execute

C Programming
TutorMe
Question:

What is a Dangling pointer?

Aman M.
Answer:

A dangling pointer is a pointer that doesn't point to a valid memory location. It arises when an object is deleted or deallocated, without modifying the value of the pointer, so that pointer still points to the memory location of the deallocated pointer. Example- int *ptr=(int *)malloc(sizeof(int)); free(ptr); //ptr is dangling pointer now. Its operations are invalid *ptr=10;

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