PureScript 语言 Halogen 实现实时仪表盘 CPU / 内存使用率动态更新

PureScript阿木 发布于 1 天前 3 次阅读

阿木博主一句话概括：基于PureScript和Halogen的实时仪表盘实现：CPU与内存使用率动态更新

阿木博主为你简单介绍：
本文将探讨如何使用PureScript语言和Halogen框架实现一个实时仪表盘，该仪表盘能够动态显示CPU和内存的使用率。我们将从项目搭建、技术选型、核心代码实现以及性能优化等方面进行详细阐述。

一、项目搭建

1. 环境准备
确保你的开发环境已经安装了Node.js和npm。然后，创建一个新的PureScript项目：

bash
purs new real-time-dashboard
cd real-time-dashboard

2. 安装依赖
安装Halogen和其他必要的依赖：

bash
npm install halogen halogen-dom halogen-hooks halogen-forms

二、技术选型

1. PureScript：一种函数式编程语言，以其简洁、安全、易于维护的特点受到开发者喜爱。
2. Halogen：一个基于PureScript的声明式UI框架，支持组件化开发，易于维护和扩展。
3. Electron：一个使用Web技术构建跨平台桌面应用的框架，可以用于创建具有图形用户界面的仪表盘。

三、核心代码实现

1. 创建仪表盘组件
创建一个名为`Dashboard.purs`的文件，用于定义仪表盘组件。

```purs
module Dashboard where

import Halogen as H
import Halogen.HTML as HH
import Halogen.HTML.Properties as HP
import Data.Maybe (Maybe(Just, Nothing))
import Effect (Effect)
import Effect.Aff (Aff)
import Effect.Class (liftEffect)
import Effect.Class.Console (log)
import Control.Monad.Aff (forkAff)
import Data.Time.Duration (Milliseconds)
import Data.Time.Natural (Natural)
import Data.Int (toNumber)
import Data.Foldable (for_)
import Data.Array (map, foldl, (:))
import Data.String (joinWith)
import Data.String.Unsafe (pack)
import Data.Int (toNumber)
import Data.Int as Int
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