Полезные инструменты, туториалы и ресурсы Созданый Райаном Далем в 2009 году, Node.js — относительно новая технология, завоевавшая в последнее время большую популярность среди веб-разработчиков. Однако, до сих пор не каждый знает, что на самом деле Node.js это серверная JavaScript среда, использующая асинхронную событийную модель. Что это означает? Все просто: это среда, которая предназначена для написания масштабируемых, высокопроизводительных приложений. Почти как Ruby’s Event Machine или Python’s Twisted, но гораздо глубже — JavaScript реализовывает цикл событий, на уровне самого языка, а не как отдельная библиотека. И это еще не все: то, что действительно круто в Node.js — это тысячи модулей, доступных для любых целей, а также активниешее сообщество этого молодого проекта. Полезные инструменты Node.js Node Express Boilerplate Node Express Boilerplate позволяет начать проект с чистого листа, но при этом сразу же обеспечивает решение всех тех рутинных задач, которые зачастую могут сорвать проект еще до того, как он начат. Log.io
Visualización de datos Proporcione a los miembros de su equipo los recursos que necesitan para descubrir conocimiento oculto en los datos con Microsoft Power BI. Descubra por qué Microsoft ha recibido el nombramiento de líder en la edición de marzo de 2022 de Gartner® Magic Quadrant™ for Analytics and Business Intelligence Platforms. Leer el anuncio Aprenda a colaborar utilizando los datos y el seguimiento de objetivos a la vez que crea una plataforma de inteligencia empresarial escalable preparada para el futuro con los avances de Power BI presentados en Microsoft Ignite. Ver el blog Crear una cultura controlada por datos con inteligencia empresarial para todos Permita que todo el mundo, en todos los niveles de su organización, tome decisiones con confianza usando el análisis de última hora. Obtenga análisis en autoservicio a escala empresarial Utilizar herramientas inteligentes para obtener resultados sólidos Ayude a proteger sus datos de análisis Clientes reales. Creamos unos cimientos más sólidos con los datos
Things I wish I knew about MongoDB a year ago I’ve used MongoDB for over a year at scale at both Heyzap and Bugsnag and I’ve found it to be a very capable database. As with all databases, there are some gotchas, and here is a summary of the things I wish someone had told me earlier. Selective counts are slow even if indexed For example, when paginating a users feed of activity, you might see something like, In MongoDB this count can take orders of magnitude longer than you would expect. Inconsistent reads in replica sets When you start using replica sets to distribute your reads across a cluster, you can get yourself in a whole world of trouble. This is compounded if you have performance issues that cause the replication lag between a primary and its secondaries to increase to minutes or even hours in some cases. You can control whether a query is run on secondaries and also how many secondaries are replicated to during the insert, but this will affect performance and could block forever in some cases! Mongo’s BSON ID is awesome Profiler
CaseBox - Litigation Software JavaScript MDN DOC [fr] JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat. JavaScript is a prototype-based, garbage-collected, dynamic language, supporting multiple paradigms such as imperative, functional, and object-oriented. JavaScript's dynamic capabilities include runtime object construction, variable parameter lists, function variables, dynamic script creation (via eval), object introspection (via for...in and Object utilities), and source-code recovery (JavaScript functions store their source text and can be retrieved through toString()). This section is dedicated to the JavaScript language itself, and not the parts that are specific to Web pages or other host environments.
impress Impressive totalitarian style Multipurpose Application Server for node.js. All decisions are made. Solutions are scaled. Tools are provided and optimized for high load. Ready for applied development and production. The main difference from others that Impress core is monolithic and its approach is to make all in one solution with high code coupling for obligatory things and leave not obligatory to be integrated by applied developers optionally. Installation $ npm install impress Features Configuration Install module using "npm install impress" in new directory. Handler examples and file system url mapping Example Following "server.js" is stating file. require('impress'); impress.server.on("start", function() { }); impress.server.start(); File "access.js" is something line ".htaccess", you can easily define access restrictions for each folder, placing "access.js" in it. File "request.js": place such file in folder to be executed on each request (GET, POST, PUT, etc.). <! Contributors License
Solucionador de problemas de Álgebra While we cover a very wide range of problems, we are currently unable to assist with this specific problem. I spoke with my team and we will make note of this for future training. Is there a different problem you would like further assistance with?
Alexander Luksidadi's Blog » ExpressJS without Jade? Use Underscore template! Many of you must have felt like a burden knowing that Express recommended you to learn another template language (Jade). Don’t worry, you can code all your templates on HTML using underscoreJS! Oh yay? Let’s take a look on how you implement that on your express app. First install express package, create your express app: $ npm install -g express $ express . Install your underscore package $ npm install -d underscore If you edit Now, all you need to do is, to comment out 1 line and register underscorejs: Now, go to routesindex.js : $ vi routes/index.js Change the template name from ‘index’ to ‘index.html’: Next, go to views directory and create layout.html And last, still in views directory, create another file called index.html And there you go.. you can write your HTMl code in peace =)
7 Useful Git Tips for Beginners By Tobias Günther Back when I first started to use Git for version control, I wasn’t sure if all the learning I invested into it would pay off. Branching, staging, stashing — these Git terms were all foreign to me. Today, I can’t imagine life without Git. Git not only gave me a much-needed ability to version-control my work, it also made me a better programmer. Here’s a series of simple tips that will help you make Git an important part of your web development workflow. Tip 1: Spend Some Time Learning Git Basics Learning the basics doesn’t mean you have to read the entire Git documentation from start to finish (although if that’s your thing, I wouldn’t discourage you from doing it). There’s so much educational content on Git that I’m sure there’s something out there that fits your personal preferences and optimal learning style. Here are a few Git learning resources to check out: Tip 2: Start with a Simple Git Workflow Less is more. Often, Git is associated with complex workflows.
Javascript Cheat Sheet Basic Objects Math Methods DOM Events Event Object Constant Event Object Methods initEvent() preventDefault() stopPropagation() EventTarget Object addEventListener() dispatchEvent() removeEventListener() EventListener Object handleEvent() MouseEvent/KeyboardEvent Methods initMouseEvent() initKeyboardEvent() DOM Node Node Types Element1 Attr2 Text3 CDATASection4 EntityReference5 Entity6 ProcessingInstruction7 Comment8 Document9 DocumentType10 DocumentFragment11 Notation12 nodeName Returns Element element name Attr attribute name Text #text CDATASection #cdata-section EntityReference entity reference name Entity entity name ProcessingInstruction target Comment #comment Document #document DocumentType doctype name DocumentFragment #document fragment Notation notation name nodeValue Returns RegExp Modifiers i Perform case-insensitive matching g Perform a global match (find all matches rather than stopping after the first match) m Perform multiline matching Brackets Metacharacters . Quantifiers Core DOM length