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Just how important are Facebook profile photos? Very, it seems. Social photo app startupPixablehaspulled togetherthis infographic showing (among other things) that every year we’re changing our profile photos more often. The number of profile photos posted per user has tripled since 2006, while the average Facebook account has 26 profile photos. How did the company collate this information? “We took a random sample from our 500,000+ userbase,” explains Pixable’s Director of Marketing, Loren Appin....

The important bits about Nissan’s 300-mile Ariya, its first EV in 10 years Nissan Ariya to come to the US late next year A new leaf in Nissan’s EV strategy Following the Leaf is one challenge for the Ariya, since Nissan has sold almost 500,000 units worldwide during the past decade. But the real target has to be theTesla Model Y, which was introduced this year, but has yet to take off in sales....

The ins and outs of JavaScript reducer — a simple, yet powerful array method Javascript reduce method parameters Thereducemethod accepts two arguments: a reducer function for the array that is used as a callback, and an optionalinitialValueargument. The reducer function takes four arguments:accumulator,currentValue,currentIndex, andarray. An example of Javascript arrayreducemethodin action: The Thisreducemethoddoes the same job as the followingfor…eachloop, but with fewer lines of code. How does thereducemethod achieve it using these parameters?...

“Have you ever had a failed startup?” I asked Mark Wachen, the managing director of DreamIt Ventures’ New York accelerator program. He laughs, “Well, in the mid 1990s, I had what one might call astart-down.” It was between graduating from Harvard Business School, helping to launch the original Sony Music website, running music promotions with Yahoo, leaving Sony and then returning to Sony that Wachen tried to launch his own company....

Twitter started out life as an AIM hack that Jack Dorsey added to his pager,Wired reports. Dorsey had been quite involved in the world of instant messaging, and had launched a dispatch software startup in 1999. Dorsey became quite interested in his friends’ status messages and wanted to see them and set his own remotely at a time when the status message was an ancillary part of the experience — most often used to let people know when you were away from the keyboard and why....