Ruby Practice Problems

"Editor's note" Shopify is a provider of online shop solutions company, the number of shops currently serving more than 100,000 (Tesla is also its users). The main frame of the website is Ruby on rails,1700 kernel and 6TB RAM, which can respond to 8,000 user requests per second. In order to expand and manage the business more easily, Shopify began to use Docker and CoreOS technology, Shopify software engineer Graeme Johnson will write a series of articles to share their experience, this article is the department ...

Absrtact: The hacker Marathon is the programmer's American Idol, very popular. Participating in the hacking marathon, in addition to keen to delve into the technology of software engineers, as well as the team from the VC company. The competition organizers will provide a free diet.     The hacker marathon is a few hackers marathon is the programmer's "American Idol", very popular.     Participating in the hacking marathon, in addition to keen to delve into the technology of software engineers, as well as the team from the VC company. The Competition party will ...

As a software engineer, the past few years have been dedicated to web development. In innovative companies, speed saves time, money, and money to ask more engineers to make the whole development faster. The school does not teach many "software engineering" methods, or how to be a good programmer. These things do not exist in the Taiwan industry, we are doing side touch, learn from experience. I've learned a lot from books and the internet about ways to make the team more productive, because I believe that I have to do this in the new team, with the industry's recognition that it's fast ...

In the last seven years, I have been doing Internet products, including the first five years in the start-up companies and listed companies, to do other people's products; nearly two years in the business, to do their own products. My experience is: Product managers need to understand technology, entrepreneurs in particular need. 　　But the premise is that you always feel a share of the desire to do something, if you plan to mix security days, especially in large companies, you do not need to understand, but to be careful not to "know too much", silly person life peace. To do the product these years, and development engineers to deal with most, ...

Introduction: Sometimes we need more than just a product manager who knows technology well, and what we need is a product manager who can trust his partners to do well and encourage them to work better together. So in the end product managers need to understand the technology, let's take a look at know the answer of this question. In the last seven years, I have been doing Internet products, of which the first five years of time in the start-up companies and listed companies, to do other people's products; the last two years in business, and strive to be their own Production ...

The road to computer science is littered with things that will become "the next big thing". Although many niche languages do find some place in scripts or specific applications, C (and its derivatives) and Java languages are hard to replace. But Red Hat's Ceylon seems to be an interesting combination of some language features, using the well-known C-style syntax, but it also provides object-oriented and some useful functional support in addition to simplicity. Take a look at Ceylon and see this future VM ...

The intermediary transaction SEO diagnosis Taobao guest Cloud host Technology Hall opened its own domain name blog, the first one to get a heavy bit of the 4 U.S. dollars to the domain name. As a technical practitioner for ten years, stroll around for ten years to find some knowledge East a hammer West a club to look around the whole time to tidy up a clue, that I on the system point of the beginning of the step-by-step, a small web site from the day thousands of visit to the day to visit 1 million or 2 million of small sites, how to let it smoothly through this stage, not in The technology appears congenitally deficient, writes to some technical personnel, also writes does not understand ...

This article, written by Paul Graham at the end of 2005, describes the four challenges VC faces and the two possible solutions. Although nearly 10 years have passed, but this article for the current stage of venture capital is still a reference, in the domestic creation circle is still a lot of money chasing a few excellent start-up companies, and VCs have to face the start-up companies do not carry out financing directly by large companies to buy the challenge. In the next few years, VC funds will find themselves battling pressure from four. VC hands have big ...

The day before yesterday evening, participated in the CSDN Mobile Developer Club organized by the salon theme under the line of speech activities, in the eyes of programmers, the practice of lean business. Lee Road knewone know the new CTO is the guest speaker of the event, the other is the CTV Radio Bell. Prior to the radio station, Gauin introduced the road at a geek park innovation conference. Therefore, we focus today on Li's keynote address. Practice Lean Entrepreneurship Keynote Speech - Lee To be honest, because Li Road Brother I went to this activity. Fortunately, last summer, talked to me ...

Editor's note: Wang Lijun, the author of the Sina Cloud computing SAE, participated in and was responsible for the development of the internal dynamic platform (private PAAs) and later led the entire SAE (public PAAs) project. After leaving Sina, set up the Nicescale, is now mainly for developers and enterprises to provide a simple and easy to use server management platform, can manage physical machines, virtual machines, cloud host even Docker containers. The product is still in beta, the official said in early 2014 to complete a round of financing, the specific amount is ominous. This article for the author of the past ten years of work ...