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/**
 * Educational Stack-based VM.
 *
 * See also:
 *  - More complex example with recursion: https://gist.github.com/DmitrySoshnikov/afda459222e96e6002ac
 *  - Register-based VM example: https://gist.github.com/DmitrySoshnikov/6407781
 *
 * by Dmitry Soshnikov <[email protected]>
 * http://dmitrysoshnikov.com
 * MIT Stye License (C) 2015

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/** 
 * Algebraic Effects and Handlers as in <a href='http://www.eff-lang.org/'>Eff</a>
 */

'use strict'
//
// Note:
// new Continuation() - returns the current function's continuation.
//

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/**
 * DERIVING THE Y COMBINATOR IN 7 EASY STEPS
 *
 * Ionut G. Stan  |  [email protected]  |  http://igstan.ro  |  http://twitter.com/igstan
 *
 *
 * The Y combinator is a method of implementing recursion in a programming
 * language that does not support it natively (actually, it's used more for
 * exercising programming brains). The requirement is the language to support
 * anonymous functions.

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// https://github.com/microsoft/TypeScript/blob/ba5e86f1406f39e89d56d4b32fd6ff8de09a0bf3/src/compiler/checker.ts

// 1. add this line to ln:3

    export const _conditionalTypes: any = {}

// 2. then replace ln:12303 to ln:12360

        function trackConditionalType() {
            // one time stuff

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COOKIE="Cookie: thinkjs=______;" # 使用浏览器登录之后拿 cookie
VIP="________"  # host ip

RESOLVE="--resolve ppt.baomitu.com:443:$VIP"
list_json=$(curl $RESOLVE -s -H "$COOKIE" "https://ppt.baomitu.com/api/slide/list?page=1&epage=500&tag_id=-1")
raw_js=`echo "console.log((" $list_json ").data.data.map(item => item.slide_title.trim().replace(/\s{2,}/g, ' ') + '#' + item.slide_id).join('\n'))"`
data=`node -e "$raw_js"`
dir_name="./ppt-baomitu"
rm -rf $dir_name
mkdir $dir_name

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{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Example",
      "type": "node",
      "request": "launch",
      "runtimeExecutable": "node",
      "runtimeArgs": ["--nolazy", "-r", "ts-node/register/transpile-only"],

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/**
* supplant() does variable substitution on the string. It scans through the string looking for 
* expressions enclosed in { } braces. If an expression is found, use it as a key on the object, 
* and if the key has a string value or number value, it is substituted for the bracket expression 
* and it repeats.
*
* Written by Douglas Crockford
* http://www.crockford.com/
*/
String.prototype.supplant = function (o) {

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A non-exhaustive list of WebGL and WebGPU frameworks and libraries. It is mostly for learning purposes as some of the libraries listed are wip/outdated/not maintained anymore.

Engines and libraries

• three.js: JavaScript 3D library
• stack.gl: an open software ecosystem for WebGL, built on top of browserify and npm.
• PixiJS: Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback
• Pex: Pex is a javascript 3d library / engine allowing for seamless development between Plask and WebGL in the browser.
• Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL
• Filament: Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS and WASM/WebGL
• ClayGL: A WebGL graphic library

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#!/usr/bin/env swift
// REPL for JavaScriptCore (for arrow keys, use rlwrap command)
import JavaScriptCore

class Timeout: NSObject, JSExport {
    let item: DispatchWorkItem
    init(_ item: DispatchWorkItem) {self.item = item}
}

func installBuiltins(_ ctx: JSContext) {

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function delay(msec, value) {
  return new Promise(done => window.setTimeout((() => done(value)), msec));
}

function isResolved(promise) {
  return Promise.race([delay(0, false), promise.then(() => true, () => false)]);
}

function isRejected(promise) {
  return Promise.race([delay(0, false), promise.then(() => false, () => true)]);