Comments URL: https://news.ycombinator.com/item?id=47213185

Points: 1

# Comments: 1

Comments URL: https://news.ycombinator.com/item?id=47212719

Points: 2

# Comments: 0

In Python, `x = []` should always have a `list[…]` type inferred. In TypeScript and Ruby, the inferred type needs to account for the fact that `x` is valid to pass to a function which takes the empty tuple (empty array literal type) as well as a function that takes an array. So the Python strategy #1 in the article of defaulting to `list[Any]` does not work because it rejects passing `[]` to a function declared as taking `[]`.

https://github.com/jez/symbol/blob/master/scaffold/symbol#L1...

The existing build system I did not have control over, and would produce output on stdout/stderr. I wanted my build scripts to be able to only show the output from the build system if building failed (and there might have been multiple build system invocations leading to that failure). I also wanted the second level to be able to log progress messages that were shown to the user immediately on stdout.

    Level 1: create fd=3, capture fd 1/2 (done in one place at the top-level)
    Level 2: log progress messages to fd=3 so the user knows what's happening
    Level 3: original build system, will log to fd 1/2, but will be captured

    $ cat foo.sh
    #!/usr/bin/env bash

    >&1 echo "will print on stdout"
    >&2 echo "will print on stderr"
    >&3 echo "will print on fd 3"

    $ ./foo.sh 3>&1 1>/dev/null 2>/dev/null
    will print on fd 3

The danger is that if you don't open it before running the script, you'll get an error:

    $ ./foo.sh
    will print on stdout
    will print on stderr
    ./foo.sh: line 5: 3: Bad file descriptor

rough math, but:

$14.2T / $1.9T * 1.6% = 12% global GDP

Stripe cites 34% growth for the same period and metric.

[1]: https://s205.q4cdn.com/875401827/files/doc_financials/2025/q...

It’s sad to think about, but in my recollection a lot of intra-building badge readers went up in response to the 2018 active shooter situation at the YouTube HQ[1]. In cases like this, the threat model is “confine a hostile person to a specific part of the building once they’ve gotten in while law enforcement arrives,” less than preventing someone from coat tailing their way into the building at all.

[1] https://news.ycombinator.com/item?id=16748529

Comments URL: https://news.ycombinator.com/item?id=47137711

Points: 238

# Comments: 245

https://github.com/jez/bin/blob/master/ascii-4col.txt

It's neat because it's the only command I have that uses `tail` for the shebang line.

Comments URL: https://news.ycombinator.com/item?id=46859345

Points: 1

# Comments: 0

    :(){:&;:};:

I have to imagine that this bank relationship will be different from those previous acquisitions? I never interacted with Goldman Sachs for the duration I've had my Apple Card—the relationship is entirely with Apple and their iOS app. I don't imagine that to be much different when Chase is the issuer.

If it's the latter, does that mean that the card rewards for Apple Card will get worse?

Comments URL: https://news.ycombinator.com/item?id=46488299

Points: 2

# Comments: 0

I have a single line in my config[1] which binds s to back-scroll, so that d and s are right next to each other and I can quickly page up/down with one hand.

If you’re on macOS, you may not be able to use this unless you install less from Homebrew, or otherwise replace the default less.[2]

[1] https://github.com/jez/dotfiles/blob/master/lesskey#L2

[2] https://apple.stackexchange.com/questions/27269/is-less1-mis...