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<crystal-gh>
[crystal] samueleaton opened pull request #3534: Fix broken link in class.cr documentation (master...fix-broken-class-link) https://git.io/vXKZx
<FromGitter>
<samueleaton> because this is not pretty: `person["pet"]? && person["pet"]["type"]?`
<FromGitter>
<johnjansen> ({} of String => String).keys.each do |key|
<FromGitter>
<samueleaton> No. I don't mean loop through keys, I want to traverse the depth of hash for a specific value. Just the the `get` method in lodash: https://lodash.com/docs/4.16.4#get
<FromGitter>
<johnjansen> Oh sorry I'm 3 beers in and deep frying a turkey right now
<FromGitter>
<wmoxam> Is it 🦃 weekend in the US this weekend?
<FromGitter>
<samueleaton> nope.
<FromGitter>
<wmoxam> ah, 2 more weeks
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<FromGitter>
<johnjansen> Early turkey for us
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<j2k>
Hey guys. Should we do our development on 0.19.4 or head?
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<BlaXpirit>
samueleaton, `person["pet"]["type"] rescue nil` or `person["pet"]?.try &.["type"]?`
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<FromGitter>
<sdogruyol> @j2k deoenda
<FromGitter>
<sdogruyol> You mean for long term?
<FromGitter>
<sdogruyol> Depends*
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<FromGitter>
<raydf> Hi everyone,
<FromGitter>
<raydf> Is there's any way to write the stack trace on rescued exception?
<Papierkorb>
raydf, see Exception#backtrace
<FromGitter>
<raydf> nice, let me try that
<FromGitter>
<raydf> @samueleaton, in person["pet"]["type"] rescue nil, exception throwing is expensive but the code looks pretty :)
<Yxhuvud>
Hmm, crystal doesn't have a implementation of #dig yet?
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<crystal-gh>
[crystal] asterite pushed 1 new commit to master: https://git.io/vXK90
<crystal-gh>
crystal/master 59b600b Ary Borenszweig: Fixed #3529: Stored value type does not match pointer operand type
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<FromGitter>
<luislavena> @samueleaton `person["pet"].try &.["type"]` There is also jq.cr if the source of data is `JSON::Any`: https://github.com/maiha/jq.cr
<FromGitter>
<luislavena> @samueleaton actually if `pet` key might be optional, do `person["pet"]?.try ...` instead :wink:
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<FromGitter>
<samueleaton> @BlaXpirit @luislavena Would those solutions pretty if the hash a a larger depth? ⏎ ⏎ I put together a really simple way to add `get` to the `Hash` class. ⏎ ⏎ ``` code paste, see link``` ... [https://gitter.im/crystal-lang/crystal?at=58274c25e097df7575a17030]
<Yxhuvud>
samueleaton: compare Hash#dig (and for that matter, Array#dig) in Ruby stdlib
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<FromGitter>
<samueleaton> Awesome! same thing different name. I would rename it to `dig` of course
<Yxhuvud>
well, same rough idea, but different api. Your version doesn't coexist with the array one and doesn't throw error if it cannot dig
<FromGitter>
<samueleaton> Oh. I was modeling mine after the lodash `get` where it is still safe if keys don't exist.
<Yxhuvud>
that kinda makes sense in javascript as all objects can be indexed like that (AFAIK)
<Papierkorb>
what about raising `#dig` and nil-returning `#dig?` ?
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<Papierkorb>
Would mirror #[] and #[]? a bit. (Though if having a non-raising version is good or not is a different matter)
<FromGitter>
<samueleaton> Yes! I love that idea with `dig?`
<Yxhuvud>
I wonder why my implementation above doesn't work on HEAD though.
<Yxhuvud>
(unless I define an argumentless dig that doesn't ever get called)
<FromGitter>
<samueleaton> ...but thats running on `0.19.4` as well
<crystal-gh>
[crystal] samueleaton opened pull request #3536: [WIP] Add dig and dig? methods to hash and array (master...hash-dig) https://git.io/vXKFP
<FromGitter>
<samueleaton> I just made a PR where we can continue the discussion #3536
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<Papierkorb>
What's the most efficient way of turning a BigInt into a Bytes in network byte order?
<BlaXpirit>
Papierkorb, just make a string :|
<Papierkorb>
BlaXpirit: The protocol mandates a byte representation
<BlaXpirit>
string is a byte representation
<Papierkorb>
in base 256 if you want to get at nomenclature
<BlaXpirit>
there seems to be no sane way
<Papierkorb>
Currently poking at the insane way, which is just a #to_unsafe away
<BlaXpirit>
but then what do you do with that object? there's still no nice access
<BlaXpirit>
mpz_export, eh
<Papierkorb>
Thanks, that method is even better than what I was currently hacking
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<Papierkorb>
There we go
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<Yxhuvud>
samueleaton: I see you found the same issue as I did.
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