React uses a special and powerful tool for structuring applications, and this tool is called JSX. JSX stands for JavaScript XML; it allows us to write HTML in React. JSX makes it easier to write and add HTML in React. This makes React not so far from what we already know. An example of a …
React is a JavaScript library for creating user interfaces, but what does “JavaScript library” really mean? A JavaScript library is a set of pre-written codes in JavaScript that makes building great web applications easier and faster. Before fully diving into React, you need to have a basic understanding of JavaScript. The most basic JavaScript concepts …
A function is a block of code which only run when it is called. A function can return data as a result. For Example: my_function<-function (“Hello, “World”) Output: “Hello, World” In this example, In this case, the function is called with the argument “Hello, World”, and it prints that value to the console using the …
R Global and Local Variables R Global Variable In the context of the R programming language, a global variable is a variable that is defined outside of any function or block of code. Unlike variables defined within functions, global variables are accessible and modifiable from any part of the R script or session. It is …
R Data types relate to the many classes of values that variables can hold. R is a dynamically typed language, which means that you don’t have to explicitly declare the data type of a variable when you create it; R will infer the data type based on the value you assign to it. Here are …
HOW TO CREATE DATABASE To create database locally, firstly, you have to install a server on your device. e.g. Wamp server or xamp server. Let’s install wamp server on our computer and follow the following steps to create a database; By following the steps above, you have created a Database successfully. HOW TO CREATE …
Function helps in reusability of code. Function is generally used instead of repeating code. For Example; Another example is cited below; Find area of CIRCLE using PHP Note: After function name is parenthesis “( )” , inside parenthesis is argument. Arguments are the ingredients or variables that are inside the parenthesis , the number of …
There are 3 types of Variable Scope in PHP. They are listed below; Local Variable: A local variable is any variable within a function curly brace ’{}’. For Example; $x is a local variable in the example above as it can only be assessed within a function. Static Variable: A static variable is …
If you declare multiple variables to hold different values, this can make your program messy and clunky. For instance, if you need to store three characteristics each for 10 individuals, having 30 variables individually declared can make your program appear less organized. So you need a way to group values with similar characteristics together to …
Event attributes are used in JavaScript to associate JavaScript code with HTML elements, which allows you to define how the element should respond to certain events, such as user interactions ( e.g., clicks, keypresses, mouseovers). Event Attributes typically begin with “on” followed by the event name and JavaScript code as their values. We have various …
