{"id":2738,"date":"2021-09-21T16:03:32","date_gmt":"2021-09-21T21:03:32","guid":{"rendered":"https:\/\/www.pensemosweb.com\/?p=2738"},"modified":"2024-04-02T18:18:18","modified_gmt":"2024-04-03T00:18:18","slug":"funciones-node-js-javascript-realmente-importante","status":"publish","type":"post","link":"https:\/\/pensemosweb.com\/en\/funciones-node-js-javascript-realmente-importante\/","title":{"rendered":"Functions in Node.js and JavaScript. What's really important"},"content":{"rendered":"

Like Objects in Node.js and Javascript. What's really important<\/a>. \u201cFunctions in Node.js and JavaScript. What's really important<\/strong>\u201d refers to the principles behind functions, which is really important to continue learning, improve your understanding of functions in programming, Node.js and in Javascript.<\/p>\n\n\n\n

Before talking about functions in Node.js and JavaScript, it is worth remembering or defining what a function is in programming.<\/p>\n\n\n\n

What are functions?<\/h2>\n\n\n\n

Functions are a very important element in any programming language. We know that the functional programming<\/a> was even invented before any programming language<\/a> based on the lambda calculation of Alonzo Church.<\/a><\/p>\n\n\n\n

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Lambda calculation syntax, functional programming. Image taken from https:\/\/www.slideshare.net\/FASTPresentations\/introduction-to-lambda-calculus-using-smalltalk-by-facundo-javier-gelatti<\/figcaption><\/figure>\n\n\n\n

In the first programming languages, subroutines, procedures and functions were used. Subroutines, procedures and functions have in common that they group a set of operations with the purpose of reusing them many times and only writing them once. <\/p>\n\n\n\n

Functions, unlike procedures and subroutines, are still used in modern programming languages, and are the smallest unit of code organization. They are used to define the behavior of objects, composing them with specific functionalities<\/strong>. Let's remember another post<\/a> that the Objects are a group of functionalities that contribute to communication with other objects<\/strong>.<\/p>\n\n\n\n

Without functions, an object wouldn't be of much use. Functions define the behavior of objects.<\/strong> And it also forms larger functions<\/strong>. In conclusion, the functions serve us for.<\/p>\n\n\n\n