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A program is a set of instructions that tell the computer to do various things; sometimes the instruction it has to perform depends on what happened when it performed a previous instruction. This section gives an overview of the two main ways in which you can give these instructions, or “commands” as they are usually called. One way uses an interpreter, the other a compiler. As human languages are too difficult for a computer to understand in an unambiguous way, commands are usually written in one or other languages specially designed for the purpose.
A computer algorithm is a sequence of steps that is followed to achieve a particular outcome. To write an algorithm, you must first understand a problem, and then solve it with coding.
To make solving problems easier, it can be helpful to break them down into many chunks. Then, each chunk can be solved one by one. For example, if you are building a calculator, don't try to solve the problem as a whole. First, consider how to get inputs. Then, determine each arithmetic operation one by one. Finally, display the results.
Developing the front-ends to modern web applications requires a daunting array not only technical skills, but organisational abilities too. Enforcing consistency, avoiding repetition and building out clean and extensible software is paramount to ensuring that your work stands the test of time, and can evolve seamlessly with the rest of the product.
CRUD is an acronym for the four basic types of SQL commands: Create , Read , Update , Delete . Most applications have some kind of CRUD functionality, and we can assume that every programmer had to deal with CRUD at some point. A CRUD application is one that uses forms to get data into and out of a database.
A Full-Stack Web Developer is someone who is able to work on both the front-end and back-end portions of an application. Front-end generally refers to the portion of an application the user will see or interact with, and the back-end is the part of the application that handles the logic, database interactions, user authentication, server configuration, etc.