RazgrizHsu
Timex compare
Hi, all,
i’m trying compare with timex variables,
but i don’t know why this code work like that..
dts = Timex.parse!( "2019-01-01T00:00:00.000Z", "{ISO:Extended:Z}" )
now = Timex.parse!( "2019-01-01T00:00:00.100Z", "{ISO:Extended:Z}" )
dt = Timex.shift( dts, seconds: 5 )
if ( dt <= now ) do
raise ( "why? dt already shift seconds... dt[#{ inspect dt }] now[#{ inspect now }]" )
else
:ok
end
I thought that such a comparison should be the opposite result…
anyone can help me to understand this? thanks
Marked As Solved
NobbZ
Also Liked
NobbZ
I tend to always use the regular comparison operators against 0.
Timex.compare(start, end) <= 0
This does match semantics very well.
kip
The built in comparison operators aren’t the right tool for this job. You probably want to use Timex.compare/3.
For an explanation of why this is the case you might find this useful. Especially this quote:
Maps are compared by size, then by keys in ascending term order, then by values in key order. In the specific case of maps’ key ordering, integers are always considered to be less than floats.
Last Post!
RazgrizHsu
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Producing high quality Elixir screencasts since 2017.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking for Elixir devs who love to ship. Start your free account.
Develop your skills with books, videos, and courses.
Enabling companies to succeed by building software people love.
The deployment platform built for Elixir: PaaS ease, VPS control.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"