July 2022
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July 22, 2022
Ask HN: What are some cool but obscure data structures you know about?
783 by Uptrenda | 371 comments on Hacker News.
I'm very interested in what types of interesting data structures are out there HN. Totally your preference. I'll start: bloom filters. Lets you test if a value is definitely NOT in a list of pre-stored values (or POSSIBLY in a list - with adjustable probability that influences storage of the values.) Good use-case: routing. Say you have a list of 1 million IPs that are black listed. A trivial algorithm would be to compare every element of the set with a given IP. The time complexity grows with the number of elements. Not so with a bloom filter! A bloom filter is one of the few data structures whose time complexity does not grow with the number of elements due to the 'keys' not needing to be stored ('search' and 'insert' is based on the number of hash functions.) Bonus section: Golomb Coded Sets are similar to bloom filters but the storage space is much smaller. Worse performance though.

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July 21, 2022
Tell HN: You can't hire because you don't post salary ranges
751 by Carrok | 395 comments on Hacker News.
At the start of this year, Colorado has changed to require every job posted to list a salary range. Other states are also beginning to follow suit. I am currently job hunting. I started looking locally, everything lists salary ranges, perfect. I can know which positions to skip and which ones might be a good match right away. No need to waste time with 7 rounds of interviewing only to find out the salary is 50% of what I currently make. Now I've begun widening my search to remote work, as the idea of commuting to an office in 2022 is completely insane to me. Most jobs on nation-wide job boards do not post a salary range. I will not even click on those job postings. It's simply not worth it. Further, after seeing so many positions listed _with_ salary ranges, when I see one without a salary range it makes me feel like you have something to hide and are trying to trick me. So the next time your team starts discussing why you can't seem to hire, maybe ask if you are publicly posting salary ranges on these positions?

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July 18, 2022
Tell HN: Internet Archive is facing a Big 4 Publishers lawsuit
395 by antiverse | 114 comments on Hacker News.
Not sure why this isn't more prominently highlighted, but this is a very culturally significant project and a custodian of a tremendous amount of Internet and WWW-oriented history. I would imagine HN would put this at the forefront of the discussions happening here. I'm not affiliated, but I am a concerned netizen. All of us here have benefited from The IA. Please help raise awareness as to what is happening. Read more here, and elsewhere - https://ift.tt/IpA028J > In June 2020, four major publishers—John Wiley & Sons and three of the big five US publishers, Hachette Book Group, HarperCollins and Penguin Random House—filed a lawsuit against the Internet Archive, claiming the non-profit organization, “is engaged in willful mass copyright infringement.” > The lawsuit stems from the corporate publishers response to an innovative temporary initiative launched by the Internet Archive during the first months of the coronavirus pandemic called the National Emergency Library. Given the impact of the public health emergency, the Internet Archive decided to ease its book lending restrictions and allow multiple people to check out the same digital copy of a book at once. > Up to that point, the Internet Archive had established a practice of purchasing copies of printed books, digitizing them and lending them to borrowers one at a time. When it kicked-off the emergency lending program, the Internet Archive made it clear that this policy would be in effect until the end of the pandemic. Furthermore, the archive’s publishers said that this program was in response to library doors being closed to the public during the pandemic. Under conditions where the Internet Archive was the only means of access to titles for many people, the policy was justified and a creative response to COVID-19.

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July 17, 2022
Show HN: tere – A Faster Alternative to cd+ls
365 by mgunyho | 194 comments on Hacker News.
Hi HN! I wrote a small program to browse folders in the terminal. The main inspiration was type-ahead search in GUI file managers. There exist several programs that are similar (see the listing in the README), but none of them do it quite the way I like, and often they have a very complex UI and a ton of features. I tried to make something that is obvious how to use and gets out of your way. (I also wanted an excuse to learn Rust.) Let me know what you think!

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July 03, 2022

What not to say to your kids



Hundreds of new parenting books hit the shelves every year-- promising new tips and tricks. But who has time to read them all? Dr. Manny sits down with Dr. Erica Reischer, psychologist and author of “ What Great Parents Do: 75 Simple Strategies for Raising Kids Who Thrive,” to help us get right to the point

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