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#include<iostream> using namespace std; class Composition{ public: //同时有类内初始值和初始化列表时候，最终值为初始化列表中的 Composition():im(this),m(20){cout<<"Composition ctor 阅读全文
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2列排列所有打开的explorer窗口 关闭全部explorer 窗口 function getExplorerWindows() { let wnds = sp.AllApplications(); const proName = "explorer"; let result = new Arra 阅读全文
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// This file was initially generated by Windows Terminal Preview 1.2.2022.0 // It should still be usable in newer versions, but newer versions might h 阅读全文
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git clone --depth=1 https://github.com/mrdoob/three.js.git git clone --depth=1 https://github.com/CesiumGS/cesium.git git clone --depth=1 https://gith 阅读全文
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整个web页面优化，涉及了传输，运行，渲染中的每个步骤。 自然每一步都有优化的可能性。 本质上使用的方法还是很朴素： 缓存(时、空局部性) 批量并发 预测(提前执行可能要执行的操作) 类似方法在CPU的指令运行(cache,pipeline)，网络协议栈(累积发送)中都大量存在。 甚至公司、团体的组 阅读全文
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layout 确认位置 A reflow is even more critical to performance because it involves changes that affect the layout of a portion of the page (or the whole pa 阅读全文
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instance Point.prototype Point.__proto__ Function.prototype Function.__proto__ Object.prototype Object.__proto__ 阅读全文
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   { this.x = x; this.y = y; 阅读全文
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https://github.com/sindresorhus/awesome-nodejs https://github.com/zerolab-fe/awesome-nodejs AI brain.js - 基于模型训练的神经网络 JS 库，支持浏览器和 Node tfjs - TensorFl 阅读全文
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https://github.com/octalmage/robotjs https://github.com/ccampbell/mousetrap https://github.com/shelljs/shelljs https://github.com/vercel/pkg https://g 阅读全文
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import net from 'net'; for(let i=1;i<=65535;++i){ setTimeout( ()=>{ let server:any = net.createServer(); server.once('error', (err : any)=> {if (err.c 阅读全文
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  ![](https://img2 阅读全文
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目录下的文件 build-node-addon-api-with-cmake.node CMakeLists.txt hello.cc hello.js package.json build-node-addon-api-with-cmake.node 为 npm run install后生成的 n 阅读全文
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sed -i 's/class=notification-bar/class=notification-bar id=notification-bar/g' *.html sed -i 's/class="sidebar site__sidebar"/class="sidebar site__sid 阅读全文
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tee [OPTION]... [FILE]... + + tee + + | | | | | ps -ax | | grep 'foo' | | | || | | + + || + + || + + | | | processes.txt | | | + + Options -a, --appen 阅读全文
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() => { const stringifyData = data => JSON.stringify(data, null, 2) const initialData = stringifyData({ data: null }) const [data, setData] = useState 阅读全文
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A custom Hook is a JavaScript function whose name starts with ”use” and that may call other Hooks import { useEffect, useCallback } from "react"; // C 阅读全文
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useMemo returns a memoized value. Pass a “create” function and an array of dependencies. useMemo will only recompute the memoized value when one of th 阅读全文
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useLayoutEffect has the very same signature as useEffect. useLayoutEffect(effectFunction, arrayDependencies) () => { const [randomNumber, setRandomNum 阅读全文