xialvjun

import { Component, createElement, cloneElement, isValidElement } from 'react'
import { isStream, on, combine } from 'flyd'

export function reactive(tag='') {
  class ReactiveClass extends Component {
    constructor(props) {
      super(props)
      this.displayName = `ReactiveClass-${typeof tag==='string' ? tag : (tag.displayName || tag.name || '')}`;
      this.state = {}
    }

xialvjun

import React from 'react'

export default function cache(mapPropsToKey, option) {
  mapPropsToKey = mapPropsToKey || (() => 'NoCache')
  option = option || {}
  // 默认最高5层，1000年
  const {
    count=5,
    expire=3153600000000,

xialvjun

function some_sync(...ps) {
  return (async () => {
    let errors = []
    while (true) {
      try {
        return await ps[errors.length]
      } catch (error) {
        errors.push(error)
        if (errors.length === ps.length) {
          throw errors

xialvjun

const DataLoader = require('dataloader');

const { knex } = require('./singleton.js');

function middleware(ctx, next) {
  const target = {};
  const handler = {
    get: function (receiver, table_name$key_column_name$) {
      if (receiver[table_name$key_column_name$]) {
        return receiver[table_name$key_column_name$];

xialvjun

import React from 'react';
import { render } from 'react-dom';
import { BrowserRouter, Switch, Route, Link, withRouter, matchPath } from 'react-router-dom';


const db = {
  authors: [
    { id: '8', name: 'xialvjun', gender: 'M', },
    { id: '1', name: 'lilei', gender: 'M' },
    { id: '7', name: 'hanmeimei', gender: 'F' },

xialvjun

// 其实这并不 safe。。。因为 js 中所有的数字其实都是浮点数，哪怕整数也是浮点数。。。
// 数值比较小的整数可能看不出来浮点数的特性，但是当数值比较大时，就能看出来了
// 还是直接用库来的方便实在：https://github.com/defunctzombie/num
function safe_add(a, b) {
  const decimal_length = Math.max(...[a, b].map(n => (n + '').split('.')).map(n => (n[1] || '').length));
  const power = Math.pow(10, decimal_length);
  // 不要把 a*power+b*power 变为 (a+b)*power
  return Math.round(a * power + b * power) / power;
}

xialvjun

import React, { Component } from 'react';
import { render } from 'react-dom';

var data = [
  ['1','1.1','1.1.1'],
  ['1','1.1','1.1.2'],
  ['1','1.1','1.1.3'],
  ['1','1.2','1.2.1'],
  ['1','1.2','1.2.2'],
  ['2','2.1','2.1.1', '2.1.1.1'],

xialvjun

// 返回一个可以任意执行，但内部并发只有 count 的函数
function limit(fn, count) {
  let n = 0;
  let ps = [];
  function work(...args) {
    n++;
    let rp = fn(...args);
    rp.then(_ => {
      n--;
      let next = ps.shift();// ps[0];

xialvjun

import { createContext } from '@xialvjun/create-react-context';
import { create_client } from '@xialvjun/tiny-graphql-client';
import React, { Component } from 'react';


const tiny_client = create_client(async (body, extra_headers) => {
  const res = await fetch('http://127.0.0.1:3000/graphql', {
    method: 'post',
    body: JSON.stringify(body),
    headers: {

xialvjun

import * as React from "react";
import { isValidElement } from "react";
import { createStyle } from "@xialvjun/create-react-style";

const StyleContext = createStyle();

function format_style(style) {
  if (!style) {
    return "";
  }