第一个npm包
这是我自己发布的第一个npm 包mport {Observable} from 'rxjs/Observable';import {ReplaySubject} from 'rxjs/ReplaySubject';import {Subject
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AKKA中的mat
Remember those mysterious Mat type parameters on Source[+Out, +Mat], Flow[-In, +Out, +Mat]and Sink[-In, +Mat]? They represent the type of values thes
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Defining and running streams基础
7.5.2 Defining and running streamsLinear processing pipelines can be expressed in Akka Streams using the following core abstractions:
Source A proces
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Play - ActionFunction
ActionFunction 其实是对request的处理
自定义请求类型
提取或者处理请求的各种参数
https://www.playframework.com/documentation/2.5.x/ScalaActionsComposition
import play.api.mvc._cl
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Scala - 基本语法
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block of code as a param— ex:if we have a function likedef example(name:string){ var char = name[0] char+'good' }={}the func
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Scala - Option - collect
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Option 操作中的collectdef onlyHttps[A](action: Action[A]) = Action.async(action.parser) { request => request.headers.get("X-Forwarded-Proto").col
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Scala - Currying
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Currying多个参数,可以分步调用每次调用会返回一个func,直到你传入最后一个参数
import scala.collection.immutable.{Map => Map_, _} object Currying { val messages =
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Scala - Pattern Match - @
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that match{ case p @ Person(_, age) if p != bill => age case Person(_, age) => age - 15 case _ => println("Not a person")}
如果直接
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Scala - Seq
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First of all, let me just point to the fact that in Scala, when we think List we mean Seq.这个需要进一步多看一些文章.来说明seq的优势.以及list等其他集合类型的适用场景
foreachval seq =S
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basic redis
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redis 基础
client.incr(‘next:user:id’, function(id){})// 自增 next:user:id字段,callback里拿到自增后的值
client.set(‘user:’ + username, userid);// 设置普通的k/v
client
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