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    How to handle component interaction in React

    pubsub.slavino.sk / infoworldcom · Yesterday - 11:00 edit

Every React app is composed of interacting components. How these components communicate is an essential aspect of the UI architecture. As applications grow larger and more complex, component interaction becomes even more important.

React provides several methods for handling this need, each with its appropriate use cases. Let’s begin with the simplest approach, parent-to-child interaction.

[ Also on InfoWorld: Angular, React, Vue: JavaScript frameworks compared ]

Parent-to-child with props

The simplest form of communication between components is via properties — usually called props . Props are the parameters passed into child components by parents, similar to arguments to a function.

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Značky: #JavaScript, #Rozne, #React

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    Is geofencing a protective bubble or a heap of trouble?

    pubsub.slavino.sk / infoworldcom · Yesterday - 11:00 edit

Even if it were to end today, the COVID-19 crisis will leave an indelible imprint on the infrastructure of our lives. In addition to the painted lines, warning signs, and other low-tech indicators that attempt to keep people safely separated, we’re seeing greater interest in technological solutions to enforce quarantines of infected individuals and keep the coronavirus from spreading in crowds.

Geofencing for quarantine management

Although much attention has gone to contact tracing as a tool for tracking the virus’s spread, geofencing is a potentially more useful tool for enforcing these curve-flattening practices at the larger societal level, in every home, office, or other facility.

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Značky: #Rozne

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    IT Salary Survey 2021: Security and cloud computing certifications on the up

    pubsub.slavino.sk / infoworldcom · Yesterday - 11:00 edit

Do more certifications lead to new jobs, promotions or a pay rise? We asked 1,172 IT professionals their thoughts and whether or not they are currently pursuing certifications and in which areas of technology?

Značky: #Salaries, #Rozne, #Careers

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    Python developers want static typing

    pubsub.slavino.sk / infoworldcom · Yesterday - 11:00 edit

Python developers cite simplicity and ease of use as principal reasons for using the language, but they still want capabilities such as static typing and performance improvements, based on survey results released this week.

Python’s simple syntax, syntactic sugar, and ease of learning were the most-favored features, capturing 37% of respondents, who were asked which three features they liked the most. Developers were polled in October 2020 as part of the annual Python Developers Survey . Being a high-level language with code that is easy to write and easy to read came second, with 30% of respondents citing these as their favorite three features.

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Značky: #Rozne, #Python

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    16 technology winners and losers, post-COVID

    pubsub.slavino.sk / infoworldcom · Yesterday - 10:00 edit

The coronavirus crisis has shaken up business as usual, with some IT strategies and tools rising to the occasion and others in line for a rethink or tough recovery post-pandemic.(Insider Story)

Značky: #Rozne

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    TypeScript 4.2 tunes tuple types

    pubsub.slavino.sk / infoworldcom · 2 days ago - 20:18 edit

Microsoft has published the production release of TypeScript 4.2, an update to the popular open source language that adds types to JavaScript. Arrived February 23, TypeScript 4.2 features enhancements pertaining to tuple types and type aliases.

TypeScript 4.2 expands the ways rest elements in tuple types can be used. Previously, TypeScript only permitted rest elements in the last position of a tuple type. Now, rest elements can occur almost anywhere within a tuple, with a few restrictions. A rest element cannot be followed by another optional element or rest element, and only one rest element is permitted per tuple.

[ Also on InfoWorld: The most valuable software developer skills to get hired now ]

TypeScript 4.2 also includes these changes and enhancements:

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Značky: #JavaScript, #Rozne

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    3 kinds of bias in AI models — and how we can address them

    pubsub.slavino.sk / infoworldcom · 2 days ago - 11:00 edit

Automated decision-making tools are becoming increasingly ubiquitous in our world. However, many of the machine learning (ML) models behind them — from facial recognition systems to online advertisements — show clear evidence of racial and gender biases. As ML models become more widely adopted, special care and expertise are needed to ensure that artificial intelligence (AI) improves the bottom line fairly.

ML models should target and eliminate biases rather than exacerbate discrimination. But in order to build fair AI models, we must first build better methods to identify the root causes of bias in AI. We must understand how a biased AI model learns a biased relationship between its inputs and outputs.

To read this article in full, please click here


Značky: #Rozne, #Analytics

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    Unleash the power of Python regex

    pubsub.slavino.sk / infoworldcom · 2 days ago - 11:00 edit

Regular expressions, or “regex,” is a system for finding complex patterns in text. Most every major language has support for regular expressions, whether as an add-on library or as a native library function.

Python comes with regex support out of the box, as part of its standard library. Here, we’ll take a quick tour of the Python regular expression library and how to get the most out of it. For more details about regular expressions generally, see this introduction in the Python documentation.

[ Tune into Serdar Yegulalp’s Smart Python video tutorials to learn smart Python tricks in 5 minutes or less ]

Python regex basics

To start using regexes in Python, simply import the Python regex library, re , which is included as part of Python’s standard library.

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Značky: #Rozne, #Python