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Data about population, urbanism, cities: I can’t get enough of it. Last week we saw that
people move away from rural areas into the cities in Europe
, and four weeks ago we looked at
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around the globe. Today, let’s compare numbers on the national level: How many people in a country live in rural areas? How many people live in cities? And of that share –how many people live in the capital?
Before looking at this chart, we might assume that the bigger a country’s population, the smaller the share that lives in its capital. And indeed: Iceland is a small country, and more than 50% of its citizens live in the capital. And China is huge, and a tiny share of its population live in Bejing. Then again, Argentina’s population is greater than Australia’s, but 35% of Argentinians live in Buenos Aires and almost nobody lives in Canberra.
But unfortunately, that’s something we can’t see in this chart. It shows us the relative numbers, but we have not even the slightest idea about the absolute number of people who live in these countries and cities.But unfortunately, that’s something we can’t see in this chart.
If only there was a chart type that solved this problem. Oh wait, there is! The Marimekko Chart . It’s one of those rare chart types that looks simple accessible, but contains a lot of information. One can read a lot of different information out of it. Which information? Let’s untangle that with our capital data:Marimekko Chart looks simple accessible, but contains a lot of information.
In a Marimekko chart, the height of each bar represents an absolute number –in our case, the population of a country. And since each bar has the same width, the area of each bar represents the full population of a country, too. The area of the “Russia bar” tells us that 143m people live in Russia. The area of the “Argentina bar” is approximately a third the size of the “Russia bar”. So we learn that Russia’s population is three times bigger than Argentina’s one:
That’s where it gets interesting: Since the full area of a bar represents the number of people in a country, a share of the bar will represent the number of people falling into this category. It’s genius! We can look at the chart and learn that in Argentina, a bigger share of people lives in the capital than in Japan. But we can also learn that in absolute numbers , there are more people living in the Japanese capital than in the Argentinian one. (To do so, we compare the size of the red areas of Argentina and Japan with each other.) The Marimekko chart shows us what relative numbers mean for the absolute world. It shows us both.
- Apr. 3rd 2018 1:30 pm ET
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Electric vehicle startup NIOis emerging as a serious competitor in the EV space and illustrating that, the company opened its first service center right next to Tesla’s inBeijing as it’s about to deliver its first cars.
China’s demand for SUVs is increasing rapidly and it is extending to electric SUVs, which made Tesla’s Model X a very popular vehicle in the country despite its higher price due to import duties slapped on all of Tesla’s vehicles.
Now NIO, which is emerging as one of the most well-funded new Chinese EV startups, is bringing its first production vehicle to market,
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to try to capture some of that demand for electric SUVs.
They are about to deliver their firstNIO ES8 vehicles and they are opening their first service right next to Tesla’s inBeijing.
Here’s a gallery of images of the new facility (via JayinShanghai):
When NIO first launched theES8, theysaid that the vehicle isa full size 7-seater electric SUV with a 70 kWh battery pack enabling 355 km (220 miles) of NEDC-rated range, which should result in closer to 200 miles of real-world range.
The first 10,000 ES8 vehicles will be the “Founder Edition” with a starting price of RMB 548,000 (~$83,000 USD) before incentives.
But the price of those“Founder Edition” vehicles doesn’t matter much since NIO claims that they are already all sold out.
The standard ES8 starts at RMB 448,000 (~$68,000 USD) or RMB 375,400 ($57,000) after govt. incentives, which represents roughly half the price of the Tesla Model X in China.
But NIO also offers a battery renting structure, similar to Renault’s ZOE battery scheme, which lowers the upfront price of the vehicle to RMB 275,400 (~$42,000 USD).
The battery renting fee is not cheap at RMB 1,280 (~$2o0 USD) per month, but it also gives owner access to a battery swap system to get more range quickly.
We will follow the rollout and early customer response to theES8. If you are in line to get one or you know someone whois, let us know.
Fred is the Editor in Chief and Main Writer at Electrek.
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Update 2: Added some language to clarify that “children as a function” is the same concept, just a different prop name.
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, patterned after react-broadcast !
A few months ago, I tweeted:
I was suggesting that the
higher-order component pattern
that is a popular method of code reuse in many React codebases could be replaced 100% of the time with a regular component with a “render prop”. The “come fight me” part was a friendly taunt to the rest of the React community, and a good discussion ensued, but I was ultimately frustrated by my inability to fully express what I was trying to say in bursts of 140 chars apiece. I
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at some point in the future to really do it justice.
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invited me to speak at the nike roshe one wmn pure platinum/white/black width
two weeks ago, I thought it’d be a great chance to explore the idea further. I was already going to be in Phoenix running air jordan 6 retro carmine aj6961
that week, and I’d heard great things about the meetup from my business partner who spoke there in April .
At the meetup, I gave a talk with the most click-bait-y title (sorry!) I could think of: Never Write Another HOC . You can watch the talk on Phoenix ReactJS’ YouTube channel , or in the embed below:
What follows is a brief summary of the talk in case you’d prefer to read it without watching the video. But seriously: watch the video. It’s more fun. 😀
If you skip the video and start reading, but you don’t quite grasp what I’m talking about, please go watch the video instead. There’s a lot more nuance in the spoken word!
I started the talk by discussing the main problem that higher-order components were designed to solve: code reuse .code reuse
Let’s back up a little bit to 2015–to the days of
. Let’s say you have a simple React app that tracks the mouse position and displays it on the page. The following is an example of how you might have built it:
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