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export abstract class Either<L, R> {
  left!: L;

  right!: R;
  static Right = <T>(v: T) => new Right(v);
  static Left = <T>(v: T) => new Left(v);

  abstract map<T>(f: (a: R) => T): Either<L, T>;
  abstract flatMap<T>(f: (a: R) => Either<L, T>): Either<L, T>;
  abstract orElse<T>(a: Either<L, T>): Either<L, R>;

zhy0216

// i tried to add retry button on antd upload list
// but no easy way to do it
// so i hack it in the following way
// the idea is interesting because i am kind of "modifying" React Node children

import produce from "immer"

const itemRender = (originNode: React.ReactElement, file: UploadFile, fileList: UploadFile[]) => {
  if(file.status === "error") {
    const {prefix} = this.props

zhy0216

# -*- coding: utf-8 -*-

import codecs


STATE = "IDEL" # INSERT, SEQUENCE


f = open("1.sql", "r")
f_w = codecs.open("test.sql", 'w', 'utf-8')

zhy0216

def camel_to_snake_case(name: str) -> str:
    #  ord('a') == 97
    r = []
    new_group = [name[0].lower()]
    for c in name[1:]:
        if 97 <= ord(c) <= 122:
            new_group.append(c)
        else:
            r.append("".join(new_group))
            new_group = [c.lower()]

zhy0216

class Solution(object):
    def invertTree(self, root):
        """
        :type root: TreeNode
        :rtype: TreeNode
        """
        if root is None:
            return root
            
        if root.left:

zhy0216

ngrok: https://ngrok.com/              # Introspected tunnels to localhost

zhy0216

Redressed: [https://www.google.com/fonts/specimen/Redressed](https://www.google.com/fonts/specimen/Redressed)

zhy0216

.yue {
font: 400 18px/1.62 "Georgia", "Xin Gothic", "Hiragino Sans GB", "WenQuanYi Micro Hei", "Microsoft YaHei", "SimSun", sans-serif;
color: #333332;
}

zhy0216

/**
    Usage:
    app.addRoute("/user/<userid>/", function(){
    console.log("userid:", this.userid);
    }).addRoute("/post/<postid>/", function(){
        console.log("postid:", this.postid);
    }).addRoute("/post/<postid>/comments", function(){
        console.log("comment of post");
    })
    app.startMain("/user/1/"); // >>> userid: 1

zhy0216

[
    { "keys": ["ctrl+d"], "command": "run_macro_file", "args": {"file": "res://Packages/Default/Delete Line.sublime-macro"} },
    { "keys": ["ctrl+up"], "command": "swap_line_up" },
    { "keys": ["ctrl+down"], "command": "swap_line_down" },
    { "keys": ["ctrl+alt+l"], "command": "beautify" },
]