From a pragmatic perspective, at first glance, it seems that adopting such a style wouldn’t interfere with productivity.

Following close on Pfizer’s heels, Moderna said on Monday that it applied for FDA emergency use authorization and released a trove of data showing that its vaccine is 94.1% effective. If it’s approved (and the aforementioned advisory panel gives its blessing), it can roll out in the United States as early as December 21. As Jesse Smith wrote in the Coronavirus Blog, the results reveal that “none of the vaccinated group participants contracted severe forms of Covid-19” — in other words, that it’s 100% effective against severe cases.

With a major release, comes breaking changes. The update to ESLint 7 and various ESLint plugins require changes to your configuration or code. The update to Jest 26 may break some of your tests, especially if you are relying on mocks not being reset.

On Thursday, Facebook announced that it would “start removing false claims about these vaccines that have been debunked by public health experts on Facebook and Instagram” in its effort to keep people safe and informed about the coronavirus. Facebook has long been a hub for people to share vaccine misinformation, and the social media giant has been criticized for not effectively regulating this content despite its potential for public harm. It has attempted to regulate anti-vaccination content and other Covid-19 misinformation in the past by limiting its reach rather than removing it, but as OneZero has pointed out, this content continued to circulate in private groups and messages.

The biggest vaccine news this week was that the U.K. granted emergency authorization for Pfizer’s Covid-19 vaccine, making it the first country in the West to approve a vaccine for mass inoculation during this pandemic. (Russia and China have done so, but their approval processes are significantly less stringent.) The first doses will be rolled out next week to doctors and nurses with the National Health Service as well as nursing home workers and adults aged 80 and over who had previously scheduled doctors’ appointments, reports the New York Times.

Create-React-App allows us to scaffold new React applications. It’s an incredibly useful tool for building React applications. It keeps all of our dev dependencies like webpack, ESLint and babel inside of react-scripts. That means, that in order to update these dependencies, we need to wait for an update to Create-React-App. Lucky for us, that day is here.

On Wednesday, Moderna, the runner-up to Pfizer in the Covid-19 vaccine race, announced plans to begin testing its vaccine in kids aged 12–17. The study, which hasn’t started recruiting yet, will involve 3,000 teens: Half will get two doses of the vaccine, one month apart, and the other half will get a placebo. This is important because vaccines can’t be administered to kids unless companies provide safety and efficacy data on this age group. Pfizer is also running tests on this age group, and AstraZeneca has done the same, though not in the United States.

On Wednesday, Moderna, the runner-up to Pfizer in the Covid-19 vaccine race, announced plans to begin testing its vaccine in kids aged 12–17. The study, which hasn’t started recruiting yet, will involve 3,000 teens: Half will get two doses of the vaccine, one month apart, and the other half will get a placebo. This is important because vaccines can’t be administered to kids unless companies provide safety and efficacy data on this age group. Pfizer is also running tests on this age group, and AstraZeneca has done the same, though not in the United States.

Create React App 4 brings support for Workbox, a powerful library from Google. With Workbox, you can leverage preaching and runtime caching to make your PWAs feel like native applications.

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in this round was from GraalVM native image, with a 0.25 ms average response time and 82,426 transactions per second, compared to Go’s best result of 1.59 ms and 39,227 tps, however this was at the cost of two orders of magnitude more memory usage!

With a major release, comes breaking changes. The update to ESLint 7 and various ESLint plugins require changes to your configuration or code. The update to Jest 26 may break some of your tests, especially if you are relying on mocks not being reset.

Even though React 17 is a transitional release that boasts no new features, it’s good to see Create React App supporting it. With support for React 17, comes support for the new JSX transform.

European regulators expressed skepticism about the “hasty” U.K. approval. British researchers, however, started looking at Pfizer’s data in October in a process called a “rolling review,” which gave them a headstart on their analyses. The approval of the vaccine in the U.K. puts pressure on the United States (and other Western countries) to follow suit. Pfizer has applied for emergency use authorization in the United States, and Moderna did the same this week (more on that below). The U.S. Food and Drug Administration (FDA) is expected to make a decision on the Pfizer vaccine after an advisory panel meets on December 10, and a second panel will meet to assess the Moderna vaccine on December 17.

Measuring your application’s performance just got easier thanks to Web Vitals. This library allows you to accurately measure metrics like First Input Delay (FID), Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS).

The advantage of the new JSX transform is that we don’t need to import React to our components anymore to use JSX. TypeScript users should note that they will need to wait until version 4.10 to use this new feature.

If you have worked with NextJS, then you know just how awesome Fast Refresh is. Fast Refresh is a replacement for React Hot Loader. Its big advantages include amazing performance and state preservation on component reload. It’s definitely a great addition to Create-React-App.