Both of these comparison operators have equality operators, the triple equals, ===, is what’s called a strict equality operator while the double equals are equality operators.
In order to evaluate the equality operator, the value and the type of the operands must match. If the value and the type are not the same, the comparison evaluation will evaluate to false.
4 === “4” //won’t evaluate because the left operand is of type ‘number’ while the right operand is of type ‘string’.
Because the equality operator uses those operands that are already the same type (if not already) before they are compared, the code block below will evaluate to true.
4 == “4” //The Value will evaluate to ‘true’
For example, a private variable can be made only visible to the current class. It cannot be accessed outside the scope of the class or its sub classes. In Java (and most other popular programming languages), we can do this by declaring the variable with the private keyword.
A script language that is object-oriented and client-integrated Validated by the user’s input Else and If Statement Interpreters that offer the power to combine inbuilt features Light weight, yet delicate statements Using a looping mechanism to handle events etc.
09. What is DOM ?
Document Object Models (DOM) are used to represent HTML and XML documents, allowing programs to alter the structure, style and content as well as formatting them. DOM represents web pages in an object-oriented manner in accordance with the Java Script programming language.
10. What is an API ? (Application Programming Interface).
You’re using APIs whenever you use Facebook, send instant messages, check your weather, use your phone’s weather app, and so on. API is short for Application Programming Interface, and it’s basically the bridge that connects two applications.
11. The Purpose of API.
Taking this challenge on is an important task, and a key tool is the Application Programming Interface (API). An API is a way for other programs to interact with a program without the developer having to share the program’s entire code.
It performs an asynchronous http GET operation to retrieve data from the server. Syntax: $. … data: data to be sent to the server with the request as a query string. callback: function that should be executed when the request occurs.
Send asynchronous http POST requests to retrieve data from the server, without needing to reload entire page by using post() method. Support for type parameter for the type of response data, specify ‘JSON’ if server returns JSON data.
15. recursion vs iteration.
A recursion and an iteration refer to processes where a set of instructions is repeated. Recursion is essentially repeating a function until a condition is met, whereas iteration is repeated iteration which depends on a certain condition to stop.
Emphasis of Iteration:
In a program, a series of code statements that are repeated over and over until a particular task is completed.
Emphasis of recursion:
Essentially, the problem is solved by solving the sub-problems one by one till we reach the trivial version or the base case.
“We have now reached the end of our journey in the world of functional programming, but there is still much more to learn about this discipline.”