phanngoc

import React, { useEffect, useState, useRef, useMemo, useCallback } from 'react';
import { Text, Editor, createEditor, Node, Range, Point, Transforms } from 'slate';
import {
  Slate,
  Editable,
  withReact,
  useSelected,
  useFocused,
  useSlate } from 'slate-react';
import { withHistory } from 'slate-history';

phanngoc

> db.web_hook_log.find({"created_at" : {"$gte": new Date("2019-04-19T03:00:00.000Z"), "$lte": new Date("2019-04-19T07:00:00.000Z")}}).sort({created_at: -1}).limit(10);
{ "_id" : ObjectId("5cb9718b3de6331b5b689400"), "is_sent" : 0, "thread_id" : 392511, "text" : "★購入完了のお知らせ★\r\n\r\nご購入いただき誠にありがとうございました。\r\n\r\n購入完了のメールが届いていなくても、このメッセージが届いた場合は、問題なくご注文が完了しています。\r\n\r\n会員のお客様は、MyLC（マイエルシー）からご注文履歴を確認することができるので、下記よりご確認ください。\r\n\r\nhttps://secure.lovecosmetic.net/lcmy/lcChum.php?apv1=\r\n\r\n商品お届けまで今しばらくお待ちください。何かご不明な点がございましたら、チャット・メールでお問合せください。", "updated_at" : ISODate("2019-04-19T06:58:19Z"), "created_at" : ISODate("2019-04-19T06:58:19Z") }
{ "_id" : ObjectId("5cb9718b3de6331b5b689401"), "is_sent" : 0, "thread_id" : 392511, "text" : "★購入完了のお知らせ★\r\n\r\nご購入いただき誠にありがとうございました。\r\n\r\n購入完了のメールが届いていなくても、このメッセージが届いた場合は、問題なくご注文が完了しています。\r\n\r\n会員のお客様は、MyLC（マイエルシー）からご注文履歴を確認することができるので、下記よりご確認ください。\r\n\r\nhttps://secure.lovecosmetic.net/lcmy/lcChum.php?apv1=\r\n\r\n商品お届けまで今しばらくお待ちください。何かご不明な点がございましたら、チャット・メールでお問合せください。", "

phanngoc

var fnInsertIframe = function(base_url, _args) {
    var dfIframe = $.Deferred();
    _args.param = "top"
    var url = base_url + "/web?" +  $.param(_args)
    if ($("#hidden-chatbot").length == 0) {
        var iframe = document.createElement("iframe");
            iframe.style.display = "none";
            iframe.setAttribute("id", "hidden-chatbot");
            iframe.setAttribute('width', '0');
            iframe.setAttribute('height', '0');

phanngoc

<script>
        (function (c, s, p) {
            if (typeof $ === "undefined") {
                var e = document.createElement('script');
                e.async = 1;e.src = s + "/js/jquery.min.js";
                var t = document.getElementsByTagName('head')[0];
                t.parentNode.appendChild(e);
            }

            var fnAfterJquery = function () {

phanngoc

package main

import (
	"fmt"
)

// NewQueue returns a new queue with the given initial size.
func NewQueue(size int) *Queue {
	return &Queue{
		nodes: make([]*Node, size),

phanngoc

package main

import (
	"fmt"
)

// MinMax comment
func MinMax(A []int) (int, int) {
	min := A[0]
	max := A[0]

phanngoc

package main

import (
	"fmt"
	"strings"
)

func convert(s string, numRows int) string {
	length := int(len(s))

phanngoc

### Sơ lược:
![](https://images.viblo.asia/b3abf531-2cae-46f8-9ada-435a195c89ab.png)
![](https://images.viblo.asia/0d821119-6fcf-4580-8e1c-647047ae67b3.png)
- Kd-trees dùng để tìm kiếm các dữ liệu gần, liên quan nhất (neighbouring data points) trong miền không gian 2 chiều, hoặc nhiều chiều.
- Kd-trees thuộc họ **Nearest neighbor (NN) search**.

### Tóm tắt:
1) Cách build Kd-trees từ tranning data:
- chọn 1 chiều random, tìm toạ độ trung bình, chia data theo toạ độ đó, lặp lại.
2) Cách tìm các dữ liệu liên quan cho point (7,4)

phanngoc

{id: 847, targetable: "CuQnLGy7glkTRgCIuwlwJxyzpTUAbtO6U34xEkSO", targetable_type: 0, is_touch: 0,…}
1
:
{id: 319, targetable: "46", targetable_type: 3, is_touch: 0, in_time: 1, note: "", operator_id: 1,…}
2
:
{id: 1, targetable: "1", targetable_type: 1, is_touch: 0, in_time: 1, note: "", operator_id: 0,…}
3
:
{id: 775, targetable: "41N8d2IDwu264m6QIL9B48LNrNWzYungJ5R9kT92", targetable_type: 0, is_touch: 0,…}

phanngoc

{
  "bool" : {
    "must" : [
      {
        "bool" : {
          "must" : [
            {
              "has_child" : {
                "query" : {
                  "bool" : {