kaizhu256

function replStart () {
/*
 * this function will start repl-debugger
 */
    let that;
    if (globalThis.utility2_repl1) {
        return;
    }
    // start repl
    that = require("repl").start({

kaizhu256

/*
 * chrome-devtools-client-example.js
 *
 * this zero-dependency nodejs-script demonstrates how to programmatically
 * script chrome-browser to do tasks using chrome-devtools-protocol commands
 * over websocket
 *
 * tldr - jump down to section "quickstart-example" to see an example task
 *
 * Chrome DevTools Protocol Documentation:

kaizhu256

// https://tools.ietf.org/html/rfc7516#appendix-A.3
(async function () {
    "use strict";
    let aad;
    let aal;
    let assertJsonEqual;
    let base64urlFromBuffer;
    let base64urlToBuffer;
    let cek;
    let ciphertext;

kaizhu256

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

kaizhu256

/*
 * webCrawl.js
 * this program will recursively "wget" api-documentation
 * from https://developer.github.com/v3/index.html to 2-level-depth
 *
 * example usage:
 * $ node webCrawl.js eager # eager mkdirSync before writeFile
 * $ node webCrawl.js lazy  # lazy  mkdirSync after  writeFile failure
 *
 * example output:

kaizhu256

<script src="a00.js"></script>

kaizhu256

<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro&display=swap" rel="stylesheet">
<style>
div {
    font-family: 'Source Sans Pro';
    font-size: 80px;
    font-weight: 700;
    height: 132px;
    line-height: 44.3636px;
    background: #FFE70B;
    width: 200px;

kaizhu256

/* jslint utility2:true */
(function () {
/*
 * this function will provide a binary-min-heap in javascript
 */
    "use strict";
    let heapCreate;
    let heapDecreaseKey;
    let heapDelete;
    let heapHeapify;

kaizhu256

shScreencastToGif () {(set -e
# this function will convert quicktime.mov $1 to animated gif $2
# https://gist.github.com/dergachev/4627207
# https://gist.github.com/baumandm/1dba6a055356d183bbf7
    ffmpeg -y -i "$1" -vf fps=10,palettegen /tmp/palette.png
    ffmpeg -i "$1" -i /tmp/palette.png -filter_complex "fps=10,paletteuse" "$2"
)}

kaizhu256

/*jslint devel*/
function semverCompare(aa, bb) {
/*
 * this function will compare semver versions aa ? bb and return
 * -1 if aa < bb
 *  0 if aa = bb
 *  1 if aa > bb
 * https://semver.org/#spec-item-11
 * example usage:
    semverCompare("2.2.2", "10.2.2"); // -1