HackerReposA FIELD GUIDE TO OPEN SOURCE
ProSponsor the shelf♧ 0
← Back to top all-time
jkrumbiegel
Chain.jl
Julia2021–2021
jkrumbiegel / Chain.jl

Chain.jl

A Julia package for piping a value through a series of transformation expressions using a more convenient syntax than Julia's native piping functionality.

4Distinct people
4Mentions
0Explicit recommenders
398GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A Julia package for piping a value through a series of transformation expressions using a more convenient syntax than Julia's native piping functionality.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week4 dated mentions

Observed mentions: 2021-01-18 15:46:24 UTC to 2021-07-26 23:13:27 UTC. Weeks start Monday, UTC.

0122021-01-18 00:00:00 UTC to 2021-01-25 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 commentsJan 182021-01-25 00:00:00 UTC to 2021-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-02-01 00:00:00 UTC to 2021-02-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-02-08 00:00:00 UTC to 2021-02-15 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2021-02-15 00:00:00 UTC to 2021-02-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-02-22 00:00:00 UTC to 2021-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-03-01 00:00:00 UTC to 2021-03-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-03-08 00:00:00 UTC to 2021-03-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-03-15 00:00:00 UTC to 2021-03-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-03-22 00:00:00 UTC to 2021-03-29 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-03-29 00:00:00 UTC to 2021-04-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-04-05 00:00:00 UTC to 2021-04-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-04-12 00:00:00 UTC to 2021-04-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-04-19 00:00:00 UTC to 2021-04-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsApr 192021-04-26 00:00:00 UTC to 2021-05-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-05-03 00:00:00 UTC to 2021-05-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-05-10 00:00:00 UTC to 2021-05-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-05-17 00:00:00 UTC to 2021-05-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-05-24 00:00:00 UTC to 2021-05-31 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-05-31 00:00:00 UTC to 2021-06-07 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-06-07 00:00:00 UTC to 2021-06-14 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-06-14 00:00:00 UTC to 2021-06-21 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-06-21 00:00:00 UTC to 2021-06-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-06-28 00:00:00 UTC to 2021-07-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-07-05 00:00:00 UTC to 2021-07-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-07-12 00:00:00 UTC to 2021-07-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-07-19 00:00:00 UTC to 2021-07-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-07-26 00:00:00 UTC to 2021-08-02 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJul 26

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jan 182021-01-18 00:00:00 UTC2021-01-25 00:00:00 UTC202
Jan 252021-01-25 00:00:00 UTC2021-02-01 00:00:00 UTC000
Feb 12021-02-01 00:00:00 UTC2021-02-08 00:00:00 UTC000
Feb 82021-02-08 00:00:00 UTC2021-02-15 00:00:00 UTC101
Feb 152021-02-15 00:00:00 UTC2021-02-22 00:00:00 UTC000
Feb 222021-02-22 00:00:00 UTC2021-03-01 00:00:00 UTC000
Mar 12021-03-01 00:00:00 UTC2021-03-08 00:00:00 UTC000
Mar 82021-03-08 00:00:00 UTC2021-03-15 00:00:00 UTC000
Mar 152021-03-15 00:00:00 UTC2021-03-22 00:00:00 UTC000
Mar 222021-03-22 00:00:00 UTC2021-03-29 00:00:00 UTC000
Mar 292021-03-29 00:00:00 UTC2021-04-05 00:00:00 UTC000
Apr 52021-04-05 00:00:00 UTC2021-04-12 00:00:00 UTC000
Apr 122021-04-12 00:00:00 UTC2021-04-19 00:00:00 UTC000
Apr 192021-04-19 00:00:00 UTC2021-04-26 00:00:00 UTC000
Apr 262021-04-26 00:00:00 UTC2021-05-03 00:00:00 UTC000
May 32021-05-03 00:00:00 UTC2021-05-10 00:00:00 UTC000
May 102021-05-10 00:00:00 UTC2021-05-17 00:00:00 UTC000
May 172021-05-17 00:00:00 UTC2021-05-24 00:00:00 UTC000
May 242021-05-24 00:00:00 UTC2021-05-31 00:00:00 UTC000
May 312021-05-31 00:00:00 UTC2021-06-07 00:00:00 UTC000
Jun 72021-06-07 00:00:00 UTC2021-06-14 00:00:00 UTC000
Jun 142021-06-14 00:00:00 UTC2021-06-21 00:00:00 UTC000
Jun 212021-06-21 00:00:00 UTC2021-06-28 00:00:00 UTC000
Jun 282021-06-28 00:00:00 UTC2021-07-05 00:00:00 UTC000
Jul 52021-07-05 00:00:00 UTC2021-07-12 00:00:00 UTC000
Jul 122021-07-12 00:00:00 UTC2021-07-19 00:00:00 UTC000
Jul 192021-07-19 00:00:00 UTC2021-07-26 00:00:00 UTC000
Jul 262021-07-26 00:00:00 UTC2021-08-02 00:00:00 UTC101

What Hacker News says

4 sources
> and we're stuck with an inferior Lisp/ML, especially in the scientific sector. You will love Julia. Here are some links: https://julialang.org/blog/2012/02/why-we-created-julia/ Julia: Dynamism and Performance Reconciled by Design (https://dl.acm.org/doi/pdf/10.1145/3276490) <= This is great and surprisingly approachable. https://opensourc.es/blog/basics-multiple-dispatch/ And when you start finding things that you miss, Julia and the community got you with excellent Metaprogramming support. https://github.com/thautwarm/MLStyle.jl https://github.com/MikeInnes/Lazy.jl https://github.com/jkrumbiegel/Chain.jl
In Pattern matching accepted for Python
I have created one of the recent competitors in this space [1], and I think it's not so bad, as long as the macros are reasonably simple to understand. If you look in the readme of my project, the four syntax examples actually look quite similar so I don't anticipate they'd cause a lot of confusion. When I got annoyed in my own work that some data wrangling syntax was repetitive I was just really glad that I could easily build my optimal solution and didn't have to just accept that there's one suboptimal (for me) way. In Python and R, if you like what they offer that's good, if not - not so good. Part of the problem comes from Julia not being geared towards DataFrames like R is, but I gladly trade a bit of convenience in one domain against a lot of expressive freedom with very clean rules that apply everywhere. For example, I think it's q
Read the rest
uite good that you can only have "weird" behavior in Julia with macros, but they give you a visual indicator with the @ that you're seeing non-standard syntax. While in R, the non-standard evaluation means that literally anything could happen to the variables you pass into any function. It makes for some convenient syntax in some cases, yes, but it's so confusing as a system for writing software! You never really know if you're looking at a variable or just a name, for example. [1] https://github.com/jkrumbiegel/Chain.jl
In Julia adoption keeps climbing

MAKE YOURSELF AT HOME

A few shortcuts

/
Search the collection
?
Open this guide
Esc
Close dialogs and navigation

Your saved repositories and interests stay in this browser.