- Variables: A variable is a way to store, access, and manipulate a set of data. Variables allow for data to be organized into named buckets that can persist outside of their specific context.
- Operators: An operator is a symbol or keyword that performs an operation on one or more values and produces a result. Examples of operations include addition (+), subtraction (-), multiplication (*), division (/), etc.
- Control Structures: Control structures are statements that allow code to be executed conditionally. These statements are typically used with comparison (e.g. if) and looping (e.g. while) operations.
- Functions: A function is a set of reusable code that can be called upon when needed. Functions allow you to write code once and reuse it multiple times. Functions usually take input parameters which are used in the returned value.
- Objects: An object is a data structure that holds information about a specific entity. Objects hold data in named attributes or methods.
- Events: An event is a signal that something has happened and a response is desired. Events are used to trigger appropriate code based on the particular type of event that occurs.
Variables are one of the fundamental components of any programming language. They are used to store information that can be later reused multiple times throughout the course of an application.
Operators are special symbols or keywords that are used to perform operations on values, variables or expressions. The most common operators are arithmetic (1 + 1), comparison (1 < 2), assignment (x = 1), and logical (a && b). Control Structures are statements that allow you to execute code conditionally (if—else statements) or repeatedly (while loops). Control structures are typically written in conjunction with comparison operators.
Functions also accept parameters—arguments or values that can be used by the function in its execution (function arguments). Parameters can be passed into functions either through their declaration when the function is invoked or through parameter variables inside the function body.
Another important best practice is keeping your code up-to-date with the latest versions of libraries and frameworks like jQuery and React. New versions often contain bug fixes and performance enhancements that can increase efficiency drastically.
Finally, it’s also important to keep your code organized with tools like GitHub which allow you to easily roll back changes if something goes wrong without having to re-write large chunks of code manually.