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const timestamp = new Date().getTime()
const timezone = new Date().getTimezoneOffset()
const UTCTimezone = new Date(timestamp).getTime() + (timezone * 60000)
const beijingTime = new Date(UTCTimezone + (3600000 * 8))

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// range(number)

function js_range (number) {
  return [...Array(number).keys()] 
}

// js_range(5) = [0,1,2,3,4]

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scrollToTop () {
  const scrollStep = - window.scrollY / (window.scrollY / 25),
        scrollInterval = setInterval(function () {
          if (window.scrollY != 0) {
            window.scrollBy(0, scrollStep)
          }
          else clearInterval(scrollInterval)
        }, 5)
  }

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# coding: utf-8

import time
import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import Retry


def requests_retry_session(
    retries=1,

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async asyncForEach (array, callback) {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array)
  }
}

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• html

<wx-view v-if="slide.dwdata.loading" class="weui-loadmore b-loadmore">
  <wx-view class="weui-loading"></wx-view>
  <wx-view class="weui-loadmore__tips">
    <wx-text value="正在加载..."></wx-text>
  </wx-view>
</wx-view>

• css

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elasticsearch

• elasticsearch csdn 专栏
• Web Architecture 101

graphql

• GraphQL 在微服务架构中的实践

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import datetime
from functools import wraps

def calculate_time(name):
    def deco(func):
        @wraps(func)
        def wrapper(*awgs, **kwargs):
            start = datetime.datetime.now()
            result = func(*awgs, **kwargs)
            end = datetime.datetime.now()

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python

• unitest mock

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async chooseImage () {
  if (dw.platform === 'dwapp') {
    if (!dw.data.token) {
      const response = await dw.request('get/contexters/get_qiniu_data')
      dw.setDatas({
        token: response.data.token,
        qiniu_url: response.data.qiniu_url
      })
    }
    dw.wx.chooseImage({