yangshun

Keybase proof

I hereby claim:

• I am yangshun on github.
• I am yangshun (https://keybase.io/yangshun) on keybase.
• I have a public key ASALzkiMtwtQ1tT2loY5YKoN54yysqWWF7TLUB8ai024BAo

To claim this, I am signing this object:

yangshun

'use strict';

const {useCallback, useState} = require('React');

const nullthrows = require('nullthrows');

type InputValue<T> = {|
  // Whether the input value has changed since it was initialized.
  changed: boolean,
  // A string key to uniquely identify the value.

yangshun

#!/bin/bash

text="/**
 * Copyright (c) 2017-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
"

yangshun

Adding "Copy" (to Clipboard) Button

If you would like to add a button to your fenced code blocks so that users may copy the code, you can do so in Docusaurus. You will have to add some code to your Docusaurus project, as seen below.

Under static/js, create a file called code-block-buttons.js with the following:

// Turn off ESLint for this file because it's sent down to users as-is.
/* eslint-disable */
window.addEventListener('load', function() {

yangshun

module.exports = (babel) => {
  const { types: t } = babel;
  const GLOBAL_EXPOSURE_IDENTIFIER = 'babelPluginExportPrivates';
  const HOIST_PRAGMA = 'babel-plugin-export-privates';
  const identifiers = new Set();

  function attachToGlobalObject(path, identifierName) {
    identifiers.add(identifierName);
    // Attach to global object to be exposed for exporting later.
    path.insertAfter(

yangshun

NUSMods

Deployment

1. SSH into the server
2. cd ~/nusmods/www
3. git pull
4. yarn && npm run build
5. Check on https://staging.nusmods.com

yangshun

Easy

• https://leetcode.com/problems/basic-calculator/description/
• https://leetcode.com/problems/mini-parser/description/

Medium

• https://leetcode.com/problems/evaluate-reverse-polish-notation/description/
• https://leetcode.com/problems/ternary-expression-parser/description/
• https://leetcode.com/problems/remove-comments/description/

yangshun

let res = '';
$('#question_list tbody tr').each(function () {
  const $td = $(this).find('td');
  const $link = $($td[2]).find('a').first();
  res += `[${$($td[1]).text().trim()} - ${$link.text()}](https://leetcode.com${$link.attr('href')})\n`;
});
console.log(res);

yangshun

# Place the ffmpeg binary in the same directory.
for video_file in *.mp4
do
  audio_file="${video_file/.mp4/.mp3}"
  if [ -f "$audio_file" ]; then
    echo "$audio_file exists."
  else
    echo "Converting $video_file to $audio_file."
    ./ffmpeg -i "$video_file" -vn -sn -c:a mp3 -ab 192k "$audio_file"
  fi

yangshun

Tech Job Hunting

Mock Interview Sites

Would advise you all to practice just for fun. I know a lot of students don't get much practice for interviews.

• interviewing.io - Allows you to have mock interviews with engineers from the bay area. I personally like this platform a lot and used it as an interviewee.
• Pramp - Peer-to-peer mock interviews. You get matched with another person, get assigned questions and take turns to be interviewer/interviewee. I personally dislike this platform a lot because I had a horrible experience being matched with some guy who didn't know shit about regular expressions, gave me a wrong test case, and led me down the wrong path of solving the question.