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Levitztoday at 12:48 PM4 repliesview on HN

>Conversely, I also am a user of LLMs (true shocker these days, I know), and am noticing a speedup in areas I was already familiar with, and a quicker introduction to new ones. The obvious benefit cannot be denied, and doing so regardless makes you look uninformed.

My largest concern comes from something tangential to this: I'm not sure we're all that good at deciding what should be learned and sticking to it.

Silly example: regex. LLMs are, as far as I know, well above the average dev when it comes to writing regex. Regex is also one of those things that for many people goes unused for months, but then you encounter the occasional perfect regex problem, and it's really easy to just lean on the LLM to write the regex for you rather than spending some time tinkering and testing. Regex can be frustrating and fickle, I think we've all been there.

But then, you just don't learn regex. So where does the intuition for what regex can do come from? Do you just become unable to write regex with no LLM? People stop writing resources for regex I guess?

My concern is that there's stuff I feel I can just chuck onto the LLM but I'm sure my judgement is not perfect. It's still probably worth it, all in all, but I'm not even sure of what I might be losing along the way and that's an uneasy feel.


Replies

xnorswaptoday at 12:53 PM

I've been using regex decades, but it never really stuck to do anything too complex, it was the perfect intersection of difficult and infrequent. ( And also variable - PCRE vs others customisations / non-regular parts, etc ).

I am very glad that I can now just ask claude for a regex to achieve my intent.

Does it mean I'll never master regex? Yes it does, but decades has shown that was unlikely to ever happen anyway.

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rmarshallATDtoday at 2:35 PM

> But then, you just don't learn regex. So where does the intuition for what regex can do come from? The training data is there for regex and it's unlikely that regex will experience massive changes but your concern makes sense. I had to learn before LLMs handled that part, the "when to use this" intuition. My guess would be that the logical conclusion is dependence on LLMs to make that determination increasing over time, both for when and how to use regex, for better or worse.

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Rumudieztoday at 2:35 PM

Knowing what to learn has always been an implicitly vital skill to career growth. Maybe it’s all right fewer people will know regex, just like as each year passes relatively fewer people know about var hoisting in JS

What does the business benefit from you handwriting regex vs a clanker?

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fragmedetoday at 1:00 PM

In the era of vibecoding, there are people creating software that haven't ever heard of a regexp. I learned regexps when Perl was popular. It's a useful skill that has served in me well in my career, but if the industry's moved on from a place where regexps and Unix knowledge are useful because this new tool has replaced me, well shit. I'm excited for the future, but also that's not a great feeling to have.