SEARCH KEYWORD -- Bad design
JavaScript finite state machine
Finite state machine is a very useful design model, it can be used to simulate many events in the world. In short, finite state machine has three features: Number of states is finite At any moment, one object can only be in one state In some condition, it will transfer from one state to another state In JavaScript, finite state machine can be applied in many places. For example, one menu element on a webpage. When the mouse hovers on the menu, the menu will show up, while the mouse moves away...
JavaScript,Finite state machine,State 2013-09-02 11:00:57
The Art (and Science) of Consumer Experience
According to a new report on e-commerce spending and earning by eMarketer, global retail sales are set to touch $22.492 trillion in 2015, with a forecast for a steady rise over the next 3 years, i.e, until 2018. Over the years, online commerce conducted via the smartphone, tablet or even the desktop devices have steadily increased, owing to the increasing adoption of mobile devices. With more than 80% consumers accessing their mobile devices to compare products, redeem coupons or make purchases,...
Ecommerce Web Development Company, Customer Loyalty Solutions, Ecommerce Development Company, Custom 2015-08-05 06:47:33
The biggest change ever of iOS--iOS 7
In this year's WWDC, Apple unveils its new iOS--iOS 7. The new iOS has the most significant change since it first came to the public. But many people may be disappointed about this. I am not one of them. In WWDC, Tim Cook said iOS 7 is more flatter than before and it has a completely new user interface design, new slide to unlock feature, official share and weather apps are redesigned. The weather apple now has almost the same feature as the newly updated Yahoo weather application. Ive said the...
iOS 7,new design,Apple 2013-06-10 22:39:45
Resolve high CPU usage issue caused by file_get_contents in PHP
Sometimes a Linux server which runs Nginx + PHP-CGI(php-fpm) web service may experience sudden system load increase and the CPU usage is around 100% for many php-cgi processes when checking with top command. If this happens, file_get_contents may be the cause if it's used in the PHP script. In lots of web applications, normally there are lots of API requests based on HTTP. Many PHP developers like to use file_get_contents("http://example.com/") to get the API response because it's simple to...
PHP,FILE_GET_CONTENTS,PHP-CGI 2018-11-09 21:35:00
Xiaomi band with screen is around the corner
On May 10, the Chinese electronics company Xiaomi will hold a new product release conference to reveal its Xiaomi MAX, a new model of Xiaomi phone. Along with this phone, there will be other product releases as well, one of them will probably be the next generation of Xiaomi Band. In April, Lei Jun, Xiaomi CEO, seemed leak the look and design of a new wrist band while he was attending a company's year end party. This new wrist band should be the next generation of Xiaomi Band. The new band ...
NEWS,XIAOMI,XIAOMI BAND,FIBIT,FITBIT ALTA,SMART DEVICE 2016-04-30 23:29:09
What is cache penetration, cache breakdown and cache avalanche?
When designing and developing highly available system, cache is an very important consideration. It is useful to cache some frequently accessed data so that they can be accessed quickly and also cache can protect the downstream system like DB from being hit too often. To provide better cache design in large systems, some problems may need to be considered first. In this post, we will talk about some frequently discussed cache problems and mitigation plans. Cache penetration Cache penetrati...
SYSTEM DESIGN,CACHE PENETRATION,CACHE BREAKDOWN,CACHE AVALANCHE 2020-04-10 08:43:00
Create namespace in JavaScript
A namespace (sometimes also called a name scope) is an abstract container or environment created to hold a logical grouping of unique identifiers or symbols (i.e., names). An identifier defined in a namespace is associated only with that namespace. The same identifier can be independently defined in multiple namespaces. That is, the meaning associated with an identifier defined in one namespace may or may not have the same meaning as the same identifier defined in another namespace. Languag...
JavaScript,namespace,example 2012-05-10 04:57:17
Should a startup focus on good user experience or ship something out quickly?
For a startup, there are always arguments about whether to build a good experience or instead ship something workable out quickly. These two seem contradict with each other and it is usually hard to decide for many startup founders. But in order to win over competitors and gain large portion of market shares as soon as possible, founders must think fast and make their life change decisions. So how should we decide whether we should focus on good user experience or we should ship out the product...
User experience,Startup 2014-01-20 06:48:28
Responsive Web Design
With the popularity of 3G, more and more people are surfing the Internet using mobile phones. Mobile devices are becoming common devices for accessing internet. So web design faces a big challenge which is how to display the same webpage on different devices with different screen resolutions.Screen resolution of mobile device are usually not very large, the width is below 600px, while PC usually has a resolution over 1000px. It is not an easy task to display the same content with satisfyin...
CSS,Web design,Layout,Response web design 2012-05-03 06:59:40
Why no max/min function for integer in GoLang
You may notice that there is no max/min function provided to compare the maximum/minimum of two or more integers if you are a GoLang developer with some experience . In other languages, these functions are provided as part of the core lib functions. Have you wondered why? Indeed GoLang provides max/min function in math package, but they are used for comparing float64 data type. The signature of these two functions are math.Min(float64, float64) float64 math.Max(float64, float64) float...
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