| select 1 from systables where tabid = 1 |
| class Stopwatch | |
| def initialize() | |
| @start = Time.now | |
| end | |
| def elapsed_time | |
| now = Time.now | |
| elapsed = now - @start | |
| puts 'Started: ' + @start.to_s |
| package net.ikenna | |
| import play.api.test.Helpers.running | |
| import play.api.test.{FakeApplication, TestServer} | |
| import org.scalatest.FunSuite | |
| import play.api.libs.ws.{Response, WS} | |
| class MyFunctionalTest extends FunSuite { | |
| import scala.concurrent.{Future, Await} |
| alias g=gen-idea | |
| alias r=reload | |
| alias u=update | |
| alias t=test | |
| alias st = ;container:stop; container:start; |
| // === Basics | |
| a must beMatching(bar) | |
| a must be matching(bar) | |
| a must not be matching(bar) // negation | |
| // === Any object | |
| a must_== b | |
| a must_!= b |
| Luckily this is easy to fix. From IntelliJ's settings, find the following: | |
| settings -> code style -> Scala -> Wrapping and braces | |
| in "Anonymous method definition" | |
| uncheck "parameters on new line" |
| def printToFile(f: java.io.File)(op: java.io.PrintWriter => Unit) { | |
| val p = new java.io.PrintWriter(f) | |
| try { op(p) } finally { p.close() } | |
| } | |
| //Usage | |
| printToFile(new File("fileName.txt"))(p => p.write("someString")) |
| sbt> eval new scala.sys.SystemProperties().foreach(x => println(x)) | |
| sbt> eval scala.sys.env.foreach(x => println(x)) |
| // random ascii string generator in Scala | |
| def randomString(length: Int) = List.fill(length)(Random.nextPrintableChar).foldRight("")((nextChar, ref) => ref + nextChar) | |
| print(randomString(10)) |
Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.