Monday, October 30, 2017

快递到中国

需要寄东西到中国,慢点没有关系,但要价格便宜。Google了下,发现除了3大巨头FedEx, UPS, USPS外,好像有好多华人开的快递公司。

http://www.chineseinsfbay.com/company/task_category/key_华人快递.html

网上有人推荐如下的
https://rt-express.com/gen/cn/pub_home.php
https://account.us-ex.com/index.aspx
http://lax.aaeexpress.us/Default.aspx
http://www.stoexpress.us/http://sfexpress.shipgce.com/

一个快递网站如果都没有ssl, 我想还是算了吧。建议多试几个,然后找一个可靠的一直用。

打了2个电话,发现这家cupertino的快递离我很近

利达快递-Lida express
4088882332
10793 S.Blaney Ave, Cupertino, CA, 95014
北京食府,三好拉面plaza内,发新社店内

How to hide iFrame

Sometimes we want to hide iframe from UI for different purposes like preload, download file, toggle effect etc. There are couple of ways to hide iFrame.
  • display:none
  • visibility:hidden
  • set height or width to zero
  • set position to offscreen
Here are explanations:
  • I don't suggest use display:none because some browsers like Firefox will skip rendering the iframe into DOM, then all logics/codes will not get executed
  • visibility:hidden will hide the iframe but will occupy the space
  • Set height and width to zero might also need set border to zero using frameBorder
  • Move iframe offscreen is an option I prefer using some class like below
             .offscreen {
                  position: absolute;
                  left: -5000px;
             }

Friday, October 13, 2017

clientX/Y, pageX/Y, screenX/Y etc

To get the position relative to the top-left corner of the document, use the pageX and pageY properties.
To get the position of the mouse pointer relative to the top-left corner of the browser window's client area, use use the clientX and clientY properties.
To get the position relative to the top-left corner of the screen, use the screenX and screenY properties.

pageX/Y gives the coordinates relative to the <html> element in CSS pixels.
clientX/Y gives the coordinates relative to the viewport in CSS pixels.
screenX/Y gives the coordinates relative to the screen in device pixels.

pageX/Y coordinates are relative to the top left corner of the whole rendered page (including parts hidden by scrolling)
clientX/Y coordinates are relative to the top left corner of the visible part of the page, "seen" through browser window.
screenX/Y coordinates are relative to the screen, You'll probably never need them in code

http://help.dottoro.com/ljsqnefp.php

There are some other rare attributes for reference only, you'll probably never need them.
layerX
layerY
offsetX
offsetY
x
y

For instance, x/y: Sets or retrieves the x-coordinate of the mouse pointer relative to the top-left corner of the closest relatively positioned ancestor element of the element that fires the event. But x property always returns the position relative to the top-left corner of the document in Google Chrome and Safari.

In summary, Use clientX/Y in most cases.

Wednesday, October 11, 2017

Domain registrar list


I use GoDaddy to host my domains, but renew price is $19.99 every year, so I am looking for some cheaper alternative for my domains' registrar. Here is the list

namecheap.com
enom.com
hostgator.com
dreamhost.com
name.com
1and1.com
gandi.com
fabulous.com
google
amazon

I will try to transfer to namecheap.com as its renew price is under $10 for .com domain. As its name indicates, it is pretty cheap comparing to other registrars. They also have promo code available in a monthly update. https://www.namecheap.com/promos/coupons.aspx

Saturday, October 7, 2017

国庆中秋中国之行


2008年9月30号飞美正式开始H1B的漫长工作经历,到2017年,整整9个年头没有在国内过国庆和中秋了。今年刚好赶上双节,就只身回国探亲 (9/26/2017-10/7/2017)。这个季节回国的机票是非常便宜的,而且国航还有圣何塞航线开通周年的优惠。双程的飞机上乘客都比较少,整排大概3-4个人做,幸运的话,可以一人坐几个位置,非常舒服。再加上国航的服务还可以,10多个小时的飞行不是那么累,特别是回程,11个小时,很快就过去了。

此次的目的主要是探亲。2周不到的时间跑了好几个地方,分别是上海,苏州,扬中,常州。上海见了彭医生,带了点礼物。其他地方就是见家人,同学和朋友。除了家人亲戚外,还见了丁同学(在农庄还见到了好多高中同学包括徐同学、戴同学、苏同学、开勇、耿同学、张荣、王坚、陶局),张同学(在长江大酒店,有他的发小冯治国行长、发平同学、程咸),刘同学,海英姐。另外还见到了一些老同事,包括David, Rain, Bryan, Roger, Sophy, 大家在国内过的有滋有味,还跟他们学了掼蛋的扑克牌牌法。也特地去常州见了师兄和师妹,他们刚好假期过来旅游,快1年没有见到他们了,还是比较想念的。因为时间的关系,家人亲戚到没有什么特别的聚会,大多都是微信和简短的寒暄。

中国的变化是月薪日益的。高铁,高速公路,桥梁等基础建设已经把大多数国家甩开很多了;电子支付更是深入人心,无纸张的时代就要到来;通货膨胀也是越来高,房价物价除以汇率后,也深深感到高不可攀。 BAT的互联网3巨头目前的地位还是不可动摇,电子商务,微信,支付宝,度娘,人工智能,凡事想到的领域都有BAT的身影。快递业非常发达,顺丰+N通+菜鸟+京东,覆盖了华夏大地的各个角落,也为电子商务的蓬勃发展提供了基础保障。治安也是非常的好,公共场所都有天眼的监控和严格的安检,在很长的一段时间内,中国肯定不会出现大规模的恐怖袭击,更不要提在美国家常便饭的枪击事件了。

然而泱泱大国在有中国特色的快速经济发展的光环下,也有很多问题。环境、金融、房价、贫富悬殊、复杂的周边形势,都好像是不定时的炸弹。各大媒体不太深入报道这些敏感话题,更多的是名人艺人的花边新闻,媒体好像也思维定势了。沿海城市,低头看城市基础建设,是非常让人佩服的中国速度,但抬头看看那灰蒙蒙的天空,又不得不让人担心中国能够用20年的时间治理好这个日益严重的环境问题嘛?房价已经来到千万人民币的时代,从万元户到千万公寓,也就30年的改革开放时间。北沪深和2线的沿海城市里,有多少房地产创造的千万富翁。强大的政府既保住了房价,也保住了汇率,让世界其他经济体刮目相看。但这个只涨不跌的房地产泡沫究竟会以怎样的形式结局呢?

作为世界的两大经济体,中国和美国各有各的好处。我悲哀的意识到,我和父母永远隔着一个一望无际的太平洋。父母不适应美国,我们不再适应中国。这是每个第一代移民都要付出的代价。我们是回不去了,起码现在,尽管手里还是紧握着中国的护照。