We are excited to announce a new release of the React Developer Tools, available today in Chrome, Firefox, and (Chromium) Edge!

What’s changed?

A lot has changed in version 4! At a high level, this new version should offer significant performance gains and an improved navigation experience. It also offers full support for React Hooks, including inspecting nested objects.

Visit the interactive tutorial to try out the new version or see the changelog for demo videos and more details.

Which versions of React are supported?

react-dom

• 0-14.x: Not supported
• 15.x: Supported (except for the new component filters feature)
• 16.x: Supported

react-native

• 0-0.61: Not supported
• 0.62: Will be supported (when 0.62 is released)

How do I get the new DevTools?

React DevTools is available as an extension for Chrome and Firefox. If you have already installed the extension, it should update automatically within the next couple of hours.

If you use the standalone shell (e.g. in React Native or Safari), you can install the new version from NPM:

npm install -g react-devtools@^4

Where did all of the DOM elements go?

The new DevTools provides a way to filter components from the tree to make it easier to navigate deeply nested hierarchies. Host nodes (e.g. HTML <div>, React Native <View>) are hidden by default, but this filter can be disabled:

How do I get the old version back?

If you are working with React Native version 60 (or older) you can install the previous release of DevTools from NPM:

npm install --dev react-devtools@^3

For older versions of React DOM (v0.14 or earlier) you will need to build the extension from source:

# Checkout the extension source
git clone https://github.com/facebook/react-devtools

cd react-devtools

# Checkout the previous release branch
git checkout v3

# Install dependencies and build the unpacked extension
yarn install
yarn build:extension

# Follow the on-screen instructions to complete installation

Thank you!

We’d like to thank everyone who tested the early release of DevTools version 4. Your feedback helped improve this initial release significantly.

We still have many exciting features planned and feedback is always welcome! Please feel free to open a GitHub issue or tag @reactjs on Twitter.

EU-funded researchers hope a greater understanding of interactions between pertussis bacteria and the immune system, together with a toolkit for testing new vaccines, will help prevent whooping cough disease and deaths in babies worldwide.

Diabetic patients who used the new patient portal and mobile phone app have better outcomes, according to a study published in iJAMA Network Open/i by Kaiser Permanente scientists.

DIY Assistive Technology offers exciting opportunities to engage stakeholders in various countries in the making and customization of novel interfaces for people with disabilities.

Microsoft on Thursday released tools that can be used by any developer on any platform, the company said in a statement, and added that developers will now be able to use the tools of their choice to create Android, iOS and Windows apps.

Microsoft on Thursday released tools that can be used by any developer on any platform, the company said in a statement, and added that developers will now be able to use the tools of their choice to create Android, iOS and Windows apps.

Distance learning solutions and online educational tools are rapidly growing in popularity and effectiveness with teachers, colleges and university-level programs worldwide. One recent survey estimated that...

As technology advances, and the need of doing more with less increases; productivity tools have become an inevitable element for entrepreneurs to stay ahead in the curve.

This report investigates how competition agencies can respond to the challenges posed by the multi-sided nature of platform markets, which are particularly common in the digital economy.

If there is a silver lining to the 2008 financial crisis, it is that it was a catalyst for the unprecedented progress we have made in building robust international tax standards for the interconnected global economy of the 21st century.

Today, the OECD has released updated and new IT-tools and guidance to support the technical implementation of the exchange of tax information under the Common Reporting Standard (CRS), on Country-by-Country Reporting (CbC) and in relation to tax rulings (ETR).

Today, the OECD released IT-formats and guidance to support the technical implementation of the OECD Treaty Relief and Compliance Enhancement (TRACE) initiative, as well as to facilitate the wider use of the OECD Common Transmission System (CTS) for the exchange of information between tax administrations.

Based on the OECD-UNODC-World Bank Anti-Corruption Ethics and Compliance Handbook, this webcast organised by KPMG offered an opportunity for attendees to learn about and understand the value of anti-corruption and ethics compliance best practices and how to use them to enhance their programmes.

Paris, 12 March 2018 - The fourth annual OECD Investment Treaty Conference addressed treaty shopping -- a controversial investment treaty issue of policy interest for many governments and stakeholders -- and explored tools to help interested governments improve their investment treaty policies.

The OECD has been collecting and analysing official insurance statistics since the early 1980’s. In response to the financial crisis in 2008, the OECD has been expanding the scope of its Global Insurance Statistics exercise in order to extend its global reach.

In Norway house prices have risen to high levels, associated with very strong credit growth, in a context of low interest rates. Such a combination was in many countries a contributory factor to the 2008-09 crisis.

This event explored the prospects of providing innovative, actionable information and advice to policymakers and other stakeholders, based on the results of contemporary research on complex dynamic systems.

Paris, 12 March 2018 - The fourth annual OECD Investment Treaty Conference addressed treaty shopping -- a controversial investment treaty issue of policy interest for many governments and stakeholders -- and explored tools to help interested governments improve their investment treaty policies.

Imports of Intra EU - Tools & Cutlery of Base Met in the United Kingdom increased to 56.24 GBP Million in February from 54 GBP Million in January of 2020. Imports of Intra EU - Tools & Cutlery of Base Met in the United Kingdom averaged 44.59 GBP Million from 1996 until 2020, reaching an all time high of 98.61 GBP Million in August of 2017 and a record low of 20.28 GBP Million in December of 1996. This page includes a chart with historical data for the United Kingdom Imports of Intra EU - Tools & Cutlery of Base Met.

Exports of Handicraft Machine Tools in Switzerland increased to 15.48 CHF Million in March from 14.24 CHF Million in February of 2020. Exports of Handicraft Machine Tools in Switzerland averaged 61.60 CHF Million from 1988 until 2020, reaching an all time high of 117.51 CHF Million in September of 1999 and a record low of 13.58 CHF Million in August of 2016. This page includes a chart with historical data for Switzerland Exports of Handicraft Machine Tools.

Imports of Handicraft Machine Tools in Switzerland increased to 107.56 CHF Million in March from 98.37 CHF Million in February of 2020. Imports of Handicraft Machine Tools in Switzerland averaged 108.37 CHF Million from 2014 until 2020, reaching an all time high of 127.04 CHF Million in October of 2018 and a record low of 86.10 CHF Million in December of 2015. This page includes a chart with historical data for Switzerland Imports of Handicraft Machine Tools.

Imports of Machine Tools in China increased to 565900 USD THO in April from 565100 USD THO in March of 2020. Imports of Machine Tools in China averaged 549529.55 USD THO from 1996 until 2020, reaching an all time high of 1455927 USD THO in September of 2012 and a record low of 74730 USD THO in March of 1998. This page includes a chart with historical data for China Imports of Machine Tools.

Facebook is expanding its Community Help hub to better serve local communities amid the COVID-19 pandemic. The hub has already seen significant usage by those requesting food, supplies and information about local resources, as well as use by volunteers and groups willing to lend a hand. Now, Facebook is adding more features to the hub […]

Facebook is expanding its Community Help hub to better serve local communities amid the COVID-19 pandemic. The hub has already seen significant usage by those requesting food, supplies and information about local resources, as well as use by volunteers and groups willing to lend a hand. Now, Facebook is adding more features to the hub […]

Like many other websites at the moment, the career-oriented networking platform LinkedIn has seen a big boost in traffic as a result of people being asked to work from home and stay indoors overall to slow the spread of the coronavirus, with a bump of 55% more conversational activity between existing connections in recent weeks. […]

Facebook is expanding its Community Help hub to better serve local communities amid the COVID-19 pandemic. The hub has already seen significant usage by those requesting food, supplies and information about local resources, as well as use by volunteers and groups willing to lend a hand. Now, Facebook is adding more features to the hub […]

PETE JENSON IN SPAIN: Wednesday night will go down as one of the greatest nights in Atletico's history and when it's recalled among the club's supporters not too many will remember the critics.

NRL star Jai Arrow has swapped the football for tools as he helps out his mate's parents and their building company while he waits for the NRL season to begin. 

Saud al-Qahtani, the former head of cybersecurity in Saudi Arabia, is thought to have spent years acquiring hacking tools for the state, including a $55m purchase from NSO Group in 2017.

Alison Harris, 51, from the UK, trained to be a private investigator when she was in her forties, having previously worked as a support worker for elderly people with dementia.

The developers of a speech recognition bot assigned to analyze the public statements of politicians hit a major stumbling block when it tried to make sense of Donald Trump.

The recent decisions of several state governments to ban sex education in all schools concern everyone, particularly women. In this age of the knowledge economy, we cannot believe that people's access to information on any subject, including matters relating to sex, can be controlled, says Kalpana Sharma.

As the spectre of communal violence raises its ugly head yet again in the build-up towards elections, India Together talks to Ramachandra Guha to explore the threats to the secular imagination in India and the hopes for religious pluralism in the democracy.

As we all know that processor and RAM are the most important hardware components that we can find in a computer. But we can't deny the fact that even hard drives are an important part. Be it an i5 or i7

As of April 24, 2020, the total number of confirmed COVID-19 cases in India is 23,077 including 4,749 recovered cases and 718 deaths. Seeing a 19-days incubation period of the virus, medical experts have suggested 14 days quarantine for people who

Berkeley, CA : Apress, 2019.

Cham : Springer, c2019.

Barker Library - TD345.S97 2019

Updates to the Chrome Developer Tools: CSS property quick search, memory stats for heap snapshots, CodeMirror upgrade and more.

Banner, Adrian D., 1975- author

Bradley, Nigel, 1958-

Miletsky, Jason I

Vecchiato, Giovanni, author

Learn how to use the power of RSS as part of your marketing. RSS is becoming increasing popular. The reason is fairly simple. RSS is a free and easy way to promote a site and its content without the need to advertise or create complicated content sharing partnerships.

RSS Tools

In the nature of making your 2015 as successful as possible, I want to share a few of my favorite marketing tools that I use on a daily basis. They make my make life easier, decisions more data driven, and my content more creative. We all have our own marketing toolbox, here is a look into mine. Here are my top 8 tools that are going to make your life as a marketer easier in 2015.

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People define negative SEO in a variety of ways. Some consider it the malicious efforts of your competitors to either build unsavory links to your website or steal the best links from your website. Others would add website hacking, content theft, brand impersonation, and similar strategies to the list. I consider negative SEO anything that could harm your reputation, visibility, or traffic in search. With that in mind, here are some tools and services you can use to monitor negative SEO activity and the harm it does to your website and brand.

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As an early adopter of media since the early 80s, I love everything about media, its immediacy, urgency, fluidity, and ability to impact the masses and unify people and ideas in real time, in the moment.

Social marketing continues to be a powerful force for good, but as we know it can be a dangerous platform for bad too.

Through prior careers in entertainment and broadcast radio sales, and celebrating 8 years in my current social media consultancy, social marketing clearly is the most effective way to build branding, credibility and the bottom line.

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Consumers and businesses alike have something to learn from just about all of your social media interactions. How many people did your post reach? What sort of links do your followers like best? Does anything you do online even matter?

Fortunately, the rise of social media has been accompanied by the creation of tools to that analyze the impact of most of your social media activities.

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In this article, I am going to cover four of the best tools to deliver RSS feed updates directly to your desktop, either through RSS tickers, or from alert boxes that display feed information right inside and scroll automatically. This way, during your workday, you can just glance over at the streaming updates and if a topic catches your eye, you can click on it and bookmark the article to read later, during your lunch break or after work.

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