itang

class A
  def name
    "itang"
  end
end

macro field(obj, name)
  if {{obj}}.responds_to? {{name}}
    {{obj}}.{{name.id}}
  end

itang

a = "hello"

def get_it(a)
  if a 
    "a"
  else 
    nil
  end
end

itang

#!/bin/bash

DIR=$1
TARGET=$DIR/package.sql

contains() {
    string="$1"
    substring="$2"
    if test "${string#*$substring}" != "$string"
    then

itang

scala> import play.api.libs.json._

scala> val json = Json.parse(s"""{"a":1,"b":[1,2,3]}""")
json: play.api.libs.json.JsValue = {"a":1,"b":[1,2,3]}

scala> val a = json \ "a"
a: play.api.libs.json.JsLookupResult = JsDefined(1)

scala> a == JsDefined(JsNumber(1))
res27: Boolean = true

itang

a = nil

if true
  a = "hello"
end

# puts a.length  //undefined method 'length' for Nil

puts a.length if a

itang

crul get http://localhost:9000/echo_json -d '{"hello":"world"}' -H Content-Type:application/json -j

itang

(as-> "hello" name (count name) (str "hello-" name ))

=>

"hello-5"

itang

import play.api.Logger
import play.api.mvc._
import scala.concurrent.Future
import scala.concurrent.ExecutionContext.Implicits.global

object XRuntimeFilter extends Filter {
  def apply(next: (RequestHeader) => Future[Result])(request: RequestHeader): Future[Result] = {
    val s = System.nanoTime()
    val result = next(request).map { response =>
      val e = System.nanoTime()

itang

<classpathentry kind="src" path="target/scala-2.11/twirl/main"/>

itang

weeks = "monday","tuesday","wednesday","thursday", "friday", "saturday", "sunday"

weeks.each do |w|
  puts "schedule_#{w}_start schedule_#{w}_end"
end

puts "*" * 100

weeks.each do |w|