| ;; in the code below, 'f' function is exactly the same as 'g' function, | |
| ;; and every line starting with '(time ...)' measures exactly the same | |
| ;; calculation. Which is for some reason fast for 'f', for as long as | |
| ;; 'g' is not defined, and after that it soon becomes slow both for 'f' | |
| ;; and for 'g'. The effect is quite reproducible. | |
| user=> (set! *warn-on-reflection* true) | |
| true | |
| user=> (def xs (int-array 1 0)) | |
| #'user/xs |
| { | |
| :aliases { | |
| :deps {:extra-deps | |
| {org.clojure/tools.deps.alpha {:mvn/version "0.6.474"}}} | |
| :dev {:extra-paths ["/home/jason/.clojure/my-dev"] | |
| :extra-deps | |
| {com.bhauman/rebel-readline {:mvn/version "0.1.4"} | |
| nrepl/nrepl {:mvn/version "0.6.0"} | |
| cider/cider-nrepl {:mvn/version "0.21.1"}} | |
| :main-opts ["-m" "myrepl"]} |
This basic, valuable technique is a combination of pilaf and paella but simpler than either, especially if you omit the spices and go with just salt and pepper. See "15 Ingredients to Stir Into Rice Pilaf or Simpler-than-Pilaf Baked Rice" (page 461) for ideas too.
| jason@jsn cr $ head -n1000 z.cr z2.cr | |
| ==> z.cr <== | |
| def q | |
| puts "in q" | |
| 1 | |
| end | |
| Q = q() | |
| class Z |
| jason@jsn cr $ crystal z2.cr | |
| in class method for x | |
| 2018-02-09 03:17:03 +03:00 | |
| before | |
| in class method for y | |
| in class | |
| out of class | |
| after | |
| jason@jsn cr $ head -n 1000 z.cr z2.cr | |
| ==> z.cr <== |
| jason@jsn cr $ head -n 1000 z.cr z2.cr | |
| ==> z.cr <== | |
| class Z | |
| def self.f | |
| puts "in class method" | |
| return Time.now | |
| end | |
| @@x : Time = f() |
| def check(l) | |
| abba = false | |
| l.scan(/([a-z])([a-z])\2\1/) do |rm| | |
| next if $1 == $2 | |
| return false if rm.pre_match =~ /\[[^\]]*$/ | |
| abba = true | |
| end | |
| !!abba | |
| end |
| require "http/server" | |
| handler = HTTP::WebSocketHandler.new do |session| | |
| session.on_message do |message| | |
| puts "Received #{message}" | |
| pp [email protected] message | |
| end | |
| end | |
| HTTP::Server.new(8081, [handler, HTTP::LogHandler.new]).listen |
| # compile with --release, connect with netcat: nc localhost 12300, try multiple times | |
| require "socket" | |
| TCPServer.new(12300, reuse_port: true).accept.puts "hi" |