Redefine Techsoft Web Developer Interview Questions and Answers

Scope refers to the accessibility of variables in a program.

• Variables declared inside a function have local scope and are only accessible within that function.

• Variables declared outside of any function have global scope and can be accessed from anywhere in the program.

• Block scope refers to variables declared within a block of code, such as within a loop or conditional statement.

• Lexical scope refers to the accessibility...read more

Java does not support multiple inheritance, but it can be achieved using interfaces.

• Java supports multiple interface inheritance.

• A class can implement multiple interfaces.

• Interfaces can extend multiple interfaces.

• Example: class A implements Interface1, Interface2

• Example: interface Interface1 extends Interface3, Interface4

A loop is a programming structure that repeats a set of instructions until a certain condition is met.

• Loops are used to iterate over arrays or perform a set of instructions multiple times.

• Common types of loops include for, while, and do-while loops.

• Example: for (let i = 0; i < array.length; i++) { console.log(array[i]); }

• Loops can be used to simplify code and make it more efficient.

• Infinite loops can occur if the condi...read more

Pickling is a process of converting a Python object into a byte stream.

• Pickling is used for serialization and deserialization of Python objects.

• The pickle module is used for pickling and unpickling.

• Pickling allows objects to be saved to a file and loaded later.

• Pickling can be used to transfer data between different Python programs.

• Example: pickle.dump(obj, file) is used to pickle an object to a file.

• Example: pickle.loa...read more