React.js is the most popular front-end JavaScript library for building Web applications. React.js or Reactjs or simply React are different ways to represent React.js. Most fortune 500 companies use Reactjs  In this article, we will learn what React.js (or simply React or Reactjs) is and why we should use Reactjs instead of other JavaScript frameworks like Angular. 
What is React.js?
React.js is an open-source JavaScript library that is used for building user interfaces specifically for single-page applications. It’s used for handling the view layer for web and mobile apps. React also allows us to create reusable UI components. React was first created by Jordan Walke, a software engineer working for Facebook. React first deployed on Facebook’s newsfeed in 2011 and on Instagram.com in 2012.
JSX
In React, instead of using regular JavaScript for templating, it uses JSX. JSX is a simple JavaScript that allows HTML quoting and uses these HTML tag syntax to render subcomponents. HTML syntax is processed into JavaScript calls of React Framework. We can also write in pure old JavaScript. @pantechelearning
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List vs Tuple: Difference Between List and Tuple

In Python, list and tuple are a class of data structure that can store one or more objects or values. A list is used to store multiple items in one variable and can be created using square brackets. Similarly, tuples also can store multiple items in a single variable and can be declared using parentheses.
The two data structures are both sequence data types that store collections of items.

Items of any data type can be stored in them.

Items can be accessed by their index.

One of the most important differences between list and tuple is that list is mutable, whereas a tuple is immutable. This means that lists can be changed, and tuples cannot be changed.
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This is the second question that usually ask you in interview so be prepare to answer and if you have some more views on it just drop down your comment. Small things can make a big difference so start up with small things that will place you in a right position 😍.
Python is a dynamically typed interpreted language. These types of languages are typically referred to as “scripting” languages because code is not compiled to a binary form. By dynamically typed I mean that types do not need to be declared when coding, the interpreter figures them out at runtime.
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What is PEP 8?
PEP stands for Python Enhancement Proposal. A PEP is a design document providing information to the Python community, or describing a new feature for Python or its processes or environment.
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Python an intepreted language. Explain.
What is PEP 8?
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What are local and global variables in python?
There are two types of variables: global variables and local variables. The scope of global variables is the entire program whereas the scope of local variable is limited to the function where it is defined.
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Java program to demonstrate the integer data type and Java program to demonstrate the floating point data types.
Which language you love the most?
Comment down your favourite language and the purpose of loving it.
What is the function used to print a statement in Java?
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What is switch case statement and Guess the output of the given program.
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The above programs are related to if else and nested if else conditions.
The first case is the program by using if else and second case is the program using nested if else. Guess the output of both the programs and comment down when if else is used and when nested if else is used..
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Java program to demonstrate the double data type and character data type.

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What is _init_?
__init__

The __init__ method is similar to constructors in C++ and Java. Constructors are used to initialize the object’s state. The task of constructors is to initialize(assign values) to the data members of the class when an object of class is created. Like methods, a constructor also contains collection of statements(i.e. instructions) that are executed at time of Object creation. It is run as soon as an object of a class is instantiated. The method is useful to do any initialization you want to do with your object.
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7 python Job interview questions. We have already posted them before but we don't want you people to miss them. Save for your future reference.
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What is method overloading. ?
In other words, we can say that Method overloading is a concept of Java in which we can create multiple methods of the same name in the same class, and all methods work in different ways. When more than one method of the same name is created in a Class, this type of method is called Overloaded Methods.
Comment down the difference between method overloading and method overriding...
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Method declaration in java
Like a class, a method definition has two major parts: the method declaration and the method body. The method declaration defines all the method's attributes, such as access level, return type, name, and arguments, as shown in the following figure. The method body is where all the action takes place.
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Python an intepreted language. Explain.
What is PEP 8?
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Inheritance allows us to define a class that inherits all the methods and properties from another class. Parent class is the class being inherited from, also called base class. Child class is the class that inherits from another class, also called derived class.
What are the types of inheritance in Python?.. Comment down your answer..
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What is single inheritance?
Single inheritance can be defined as a derived class to inherit the basic methods (data members and variables) and behavior from a superclass. ... Basically, java only uses a single inheritance as a subclass cannot extend more superclass. Inheritance is the basic properties of object-oriented programming.
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Multilevel inheritance in java?
When a class extends a class, which extends anther class then this is called multilevel inheritance. So in this case class C is implicitly inheriting the properties and methods of class A along with class B that's what is called multilevel inheritance. ...
What is single inheritance? This one I discussed in the previous post if you would have missed it learn now here.
Single inheritance can be defined as a derived class to inherit the basic methods (data members and variables) and behavior from a superclass. ... Basically, java only uses a single inheritance as a subclass cannot extend more superclass. Inheritance is the basic properties of object-oriented programming.
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