Lingquan | Blog

Lingquan | Blog

Truth needs no colour. Beauty, no pencil.

A perfect internship at LinkedIn
I should have shared the wonderful internship at LinkedIn a few weeks ago. However, it’s my first time to write an work article, so it takes a long time for me to decide what content should it include. The reason for this is that I harvest a lot of things from here – LinkedIn. Until now, I sti...
Host a website by AWS S3 with Namecheap domin
5 Steps to host a static website in AWSStep 1: Register a Domain in NamecheapIf we don’t already have a registered domain name, such as example.com, register one with Namecheap. If we are student, we can apply for a discount. When we have a registered domain name, our next tasks are to create and...
个人理财学习 —— 常见的固定收益
固定收益一般和信贷有关系,作为投资人把钱借出去,每个月或者每个季度发放利息,收入比较固定。债市比股市相对稳健。需要指出的是债市和股市不能对冲。此外,它也存在特有的风险: 市场风险,大的经济环境 发行人违约风险,信用评级风险 货币风险,美联储升息降息影响债市价格。 通货风险 一. 国债(Goverment Bond) Treasury bills (T-bill): Treasury bills (T-bill) Treasury bills (T-bill) are short-term fixed-income securities that mature within one ...
个人理财学习 —— 股市入门
公司财务报表 Balance Sheet 资产负债表: Asset = Liablity + Equity Profit and Lost statement 损益表 股票五大指标: Earning Per Share(EPS): Net profit/ Number of Share 公司赚钱能力 Return on Equity(ROE)股本回报率: Net profit/Equity 有点类似投资回报率 Price to Earning Ratio(PE/PER)价格收益比: 交易价/EPS 买入的话,越小越好(小投入,大回报) Dividend Per Sha...
个人理财学习 —— 提早规划
入职前正好自己有了些时间,一直在思考自己以后真正想要什么,怎么规划以后的发展。在网上翻来翻去,发现自己需要学的东西好多好多,除了学习自己的本职工作之后的知识,发现了理财在新一代年轻人的重要性。感谢巫师财经和和我一起来谈钱两个 Up 主的视频从经济和个人理财两个方面带我入门。希望从入职一开始就可以培养自己良好的财经理财习惯和能力。 1.宏观方面: 主动学习积累一些理财投资方面的知识,提高自己财商。如果说之前英语和电脑是必备技能,那新一代年轻人必备技能是财务知识(俗话说,你不理财,财不理你)。不管中美,贫富差距都会越来越大,可以用马太效应解释。(马太效应:两极分化严重,投资回报率远超劳动回报...
Introducation to Socket
1. Concept In order to better understand, if we view rooms as applications, we can regard asocket as a door of a room, which is used to communicate with other rooms. A socket is an abstract representation of a communication endpoint. A socket is uniquely identified by the IP address, Port number...
ARP, DNS and DHCP
OverviewIf a client wants to send somthing to a server, the sequece is this: He needs to know its own IP address using DHCP He need to know server’s IP address using DNS He need to see if the server is in the same network with him via comparing the net id of their IP address;If yes, it will not ...
Layered Architecture of Network
If a client wants to send somthing to a server, the sequece is this: He needs to know its own IP address using DHCP He need to know server’s IP address using DNS He need to see if the server is in the same network with him via comparing the net id of their IP address;If yes, it will not need...
Array Deduplicate in Javascript
Common ways to deduplicate array in JavascriptIt’s common to be asked to delete duplicates in arrays in Interviews.Here is a summary for dedpulication of arrays in Javascript. Method 1: SetIf we can use ES6, we can just simply use Set object to deduplicate. Code sample:123456789var arr = [0,0,,0,...
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Lingquan Han
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