Facebook Interview Questions and Answers
Facebook is basically a social media platform. It is an American social media and social networking service, company that is to be accessed with the mobile network and this company is based in Menlo Park, California. Later it was introduced in the flagship process by the founder whose name is Mark Zuckerberg, he and his group of friends have designed this. Facebook is one of the largest social media sites these days and it is been used by millions of users from all over the world.
It is an attractive digital platform and people are connecting every day because the increasing rate of mobile devices is letting people use several social media accounts on different platforms. The candidates with knowledge in programming and IT sectors are always in demand on these social media platforms. Now let us discuss certain frequent, Facebook interview questions and answers often asked.
Most Frequently Asked Facebook Interview Questions
One of the most important applications of the Stack is the arithmetic expressions’ conversion into the programming languages of high-level into a form that the machine can read. Because the computer system can understand as well as work only on the binary language, the system assumes that the arithmetic operation is able to take place only in two operands, for example, A+B, D/A, and others. But in the usual form, one arithmetic expression can consist of two or more operators plus two operands for example (A+B)*C(D/(J+D)).
This expression follows this scheme
This expression follows this scheme
How to convert the Infix Expression To a Postfix Expression
Let, X, be one arithmetic expression that is written in the infix notation. Now, this algorithm finds or needs an equivalent postfix notation Y.
[here comes the end of If]
[insert the parenthesis for End of If]
[here also insert the parenthesis for End of If]
You can two numbers without using the third variable in PHP as follows:
//swap two numbers without using third variable
//add x and y, store in x i.e : 30
//subtract 10 from 30 i.e : 20 and store in y
//subtract 20 from 30 i.e : 10 and store in x
//now print the reversed values
echo "Now x contains : ". $x;
echo "and y contains : ". $y;
//And you can make use of some predefined functions as well while not using the third variable. This can be done as follows:
$a = 10;
$b = 20;
list($a, $b) = array($b, $a);
echo $a . " " . $b;
PHP is basically known as the Hypertext pre-processor. It is a script based language where everything can be reused redesigned and adopted for any later use. The use of PHP is really efficient for web application designing. The web developers can use this programming language with a large extension to different operating systems and also due to access to different web servers. It is a real friendly programming language for developers. Here in this programming language script-based scripting is the main operation here where it enables the developer to help in the conversion of the program source and human-readable code into a much easier format which is really easy to understand by the system.
After an app is been launched in the market the user feedbacks or reviews must always be asked for. Because that will help you in designing or rectifying the flaws of your app and to make it more presentable as per the demand of the users. The user requirement must be always be asked for as finally, you are designing the app or the web page for them itself. Also certain developers before launching their app in the market. They even try to launch a test version of their app with similar ideas and if that works then it is fine to launch the final complete version of the app.
The difference between the user interface and the user experience is given below:
|User interface (UI)||User experience (UX)|
|This is basically focused on the smooth running of the interface. The more interactive the interface is and works efficiently that is actually the work of the UI.||Here in this process it mainly focuses on the user experience about the work of the developer if they are liking the service provided by them in terms of design and content both.|