Материалы по теме 'tutorial' | DevsDay.ru

IT-блоги Материалы по теме 'tutorial'

IT-блоги Материалы по теме 'tutorial'


Разработка dev.to 26 мая 2021 г. 13:29

Conditional rendering on React helps you build your apps avoiding unnecessary renders depending on some validations, and it can be used on tooltips, modals, drawer menus, etcetera. But, if we do it wrong, we can end up losing performance instead of i...... читать далее

react tutorial javascript

Разработка dev.to 26 мая 2021 г. 12:22

Introducing the Scientific Programming School - Bootcamp. https://bootcamp.scientificprogramming.io/ A 100% free, automated video-based learning platform that curates, organises and shows tutorials on advanced programming and Linux computing. It ena...... читать далее

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Разработка dev.to 26 мая 2021 г. 11:43

In this python tutorial, we look at how you can check if a python string contains a substring. We look at the various methods and explain their use cases in detail. This tutorial is a part of our initiative at Flexiple, to write short curated tu...... читать далее

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Разработка dev.to 26 мая 2021 г. 7:29

Hello beautiful people,I would be sharing out on how I made a python project that generate qrcode using python. • You can check how the runs here • You can also access the source code here Okay, let's get started🦸‍♂️ What is a QR Code? A Qu...... читать далее

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Разработка dev.to 25 мая 2021 г. 16:33

It seems that some juniors overlook or eschew few JavaScript features because of its bizarre and dynamic nature. It's common to happen. I can relate to this evasive moment when I first began my journey as a web developer. Back in my days, I preferre...... читать далее

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Разработка dev.to 25 мая 2021 г. 11:01

Hi folks, Managing data in an app is little tricky when many components are sharing and updating it. useState, useReducer, useMemo etc. are some state management hooks in React, which are very efficient and have their own ways to work in different...... читать далее

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Разработка dev.to 25 мая 2021 г. 6:38

When it comes to comparing Javascript variables it is very easy, a simple statement like this will do the job: if(a === b) { doSomething() } What if you want to compare to objects? Why not just do this: if (myObject === yourObject) { doSo...... читать далее

javascript beginners tutorial oop

Разработка dev.to 24 мая 2021 г. 22:24

suporte para linguagens Abrindo o visual studio code (que aqui será chamado de vs code), selecione a opção mostrada na imagem, sem clicar nos nomes em azul. A janela de extensões sera aberta Selecione as linguagens que você desejar instalar o...... читать далее

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Разработка dev.to 24 мая 2021 г. 22:14

Introduction In the last post, I talked about react-router setup tutorial. If you don't read the previous post, click it here!. I want to add several important topics about Route Rendering Methods. Route Rendering methods There are seve...... читать далее

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Разработка dev.to 24 мая 2021 г. 15:17

I help people to check CSS/HTML of their projects. I have noticed that some errors are repeated from project to project. And so I decided to write this article so that you can check if you have them. Using the placeholder attribute instead...... читать далее

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Разработка dev.to 24 мая 2021 г. 13:59

Author: Nikita Anisimov Part 1 Part 2 Hi there! In this post we’ll discuss how we use the EventWriter class and ghcjs-dom library. Using EventWriter In the current implementation, in order to send events from nested levels, we pass t...... читать далее

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Разработка dev.to 24 мая 2021 г. 13:48

Now I will not be going too much into what GraphQL exactly is but what you should know is that it is a query language for your APIs that is fundamentally different from the good ol' RESTful APIs. In GQL, we make a post request to our API rather than...... читать далее

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Разработка dev.to 24 мая 2021 г. 13:46

This article was first published on Applozic Blog. Introduction It's 8 pm and you're tired after a long day of work. You want to order in food but you also need to be on video for the marketing call for the next hour. How do you know when...... читать далее

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Разработка dev.to 24 мая 2021 г. 13:08

Fidel makes it simple to add card-linking capabilities to any application. The process involves setting up a program, along with the participating brands and locations. And then registering or helping your users register their cards on the Fidel plat...... читать далее

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Безопасность DZone Security 23 мая 2021 г. 13:22

This Zato how-to is about ensuring that only API clients with valid SSL/TLS certificates, including expected certificate fingerprints or other metadata, can invoke selected REST endpoints. In this way, we are making access to the endpoints secure and...... читать далее

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Разработка dev.to 23 мая 2021 г. 11:25

Nullish coalescing is new Javascript feature of ES11 (aka ECMA Script 2020).The nullish coalescing operator looks like this ?? Truthy and Falsy values Before proceeding further,, you need to know about truthy and falsy values in Javascrip...... читать далее

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Разработка dev.to 23 мая 2021 г. 6:13

In this Cypress tutorial, we will cover how you can work with multiple elements. We will verify the length of the list as well as assert the text of all the list items. Test Scenario In this test scenario, we will try to get the length of...... читать далее

javascript testing webdev tutorial

Разработка dev.to 22 мая 2021 г. 13:07

Access to fetch at ‘https://coolserver.com’ from origin ‘http://localhost:3000’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s...... читать далее

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Разработка dev.to 22 мая 2021 г. 12:18

Welcome to Day 3 of this Challenge. This is what I created today. ➜ Here is the Demo : ➜ Video Tutorial : ➜ Source Code : https://www.mrwebwolf.com/2021/05/responsive-task-management-dashboard.html ➜ Instagram Post and Reel for Day 3 : See P...... читать далее

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Разработка dev.to 22 мая 2021 г. 8:43

In this tutorial, I will show you how to give a cartoon-effect to an image in Python with OpenCV. OpenCV is an open-source python library used for computer vision and machine learning. It is mainly aimed at real-time computer vision and image proces...... читать далее

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