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  Creating Dynamic PDF files using HTML and PHP

There always arise a need for converting content from one file format to another one. Some may need to convert some text into HTML and some may need to convert some HTML content to an image format. The main reason for the need to convert from one file format to another is because the target file format is best suited for targeted medium where the content need to be displayed. The targeted medium may be an email, a printed hard copy or a web browser. The text format is best suited for sending ema...

   PHP,HTML,PDF,Conversion,Generate,Library     2011-11-18 12:10:53

  How expensive is a MySQL query?

Database access speed is always the bottle neck of many applications. Many application have large amount of data to search, retrieve and display nowadays. How do we improve the performance of our applications, how do we reduce the cost of database access? Apart from the design of database, the quality of the query is also one important factor to take care.  But before that, we need to know how much network traffic a query will consume. Yunyang,Zhang from Nubee in Singapore did some research...

   MySQL,Network traffic,Query     2013-04-09 05:13:33

  Let's talk about JSON.stringify()

JSON has been used in lots of places to exchange data among different services/systems. Nowadays all mainstream programming languages have built-in library support of JSON data parse and stringify. In this post, let's talk about JSON.stringify() in JavaScript. Let's first take a small example of Object conversion handling. There is a requirement to convert below object const todayILearn = { _id: 1, content: '今天学习 JSON.stringify()，我很开心！', ...

   JAVASCIPT,JSON,JSON.STRINGIFY     2020-02-22 04:25:08

  What’s the waiter doing with the computer screen?

When Richard Gatarski and a few friends wanted to dine in the Swedish city of Norrköping a few weeks ago, they booked a table at a downtown Italian restaurant that seemed nice. When they arrived, they were greeted by the headwaiter, who asked if they had a reservation. Richard confirmed, and the headwaiter looked at his computer screen. ”Gatarski? Hm, let’s see .. yes, there’s your reservation. Welcome!” The headwaiter then picked up what Richard first thought m...

   Waiter,Computer screen,Touch     2012-03-12 11:07:01

  Address of a Java Object

In conventional java programming, you will never need address or location of a java object from memory. When you discuss about this in forums, the first question raised is why do you need to know the address of a java object? Its a valid question. But always, we reserve the right to experiment. Nothing is wrong in exploring uncharted areas.I thought of experimenting using a little known class from sun package. Unsafe is a class that belongs to sun.misc package. For some of you the package might ...

   Java,Object,Address,Memory,Start address     2011-09-29 11:17:46

  In 2012, let’s stop talking web design and start talking product design

“My hope for 2012 is that some of the old guard of well-respected web gurus stop talking HTML and CSS and start talking serious development. I love the way many of the old guard write and evangelize, but I’m tired of discussing basically the same stuff we were in 2006.” I wasn’t specifically referring to Jeffrey Zeldman, but he (somewhat arrogantly) assumed I was, and responded with a sarcastic, “And a merry Christmas to you, sir.” ...

   Web design,Model,Module focus,2012     2011-12-26 08:49:03

  Use progressive JPEG to improve user experience

JPEG image files can have two different save types : Baseline JPEG and Progressive JPEG. Both of them have the same extension name but with different display effect. Baseline JPEG This type of JPEG files are scanned from top to bottom consecutively, each line of the image data will be saved sequentially. When opening this kind of images, data will be displayed with the save order line by line until all the data are read. If the image size is very large or network speed is very slow, the image wi...

   USER EXPERIENCE,PROGRESSIVE JPEG,BASELINE JPEG     2013-07-25 08:11:50

  â€œBuild something people want” is not enough

Most people take “Build something people want” to mean “Pick a problem to solve and solve it well.” This is not sufficient to build a world changing company.“Why now?” is the question entrepreneurs really need to answer. “Why now” encompasses two important and closely related concepts:Why have previous attempts at this idea failed?What enabling factors have emerged that enable you to succeed today?The world is full of smart people who have the same...

   User requirement,User friendly,Example,People needs     2011-11-16 08:18:45

  Why Objective-C is Hard

As an active member of "The Internet" and vocal Objective-C coder, I get a lot of questions surrounding the language. They're often framed around thinking about learning the language or trying to write an app, but they also usually involve a phrase like "Objective-C looks really hard" or "what are all those minus signs about?" Both of these are pretty good questions, and I'd like to address why someone might be more hesitant to jump into iOS or OS X development compared to, say, Ruby or J...

   Objective-C,difficult,hard,reason,analysis     2012-03-07 05:11:28

  Successful Web Design: It’s All About The Details

While the tools are out there for almost anyone to build a website, the most successful designs all share a few characteristics. These sites tend to be organized well, have great content and have all the design details in order. Small parts of your site, from alignment and bolding to contrast and color, can make or break the design. Taking care of the details before your project is published will ensure the page has a clean overall feel. Unorganized design and lack of attention to detail ...

   Web design,Details,Success     2012-04-16 13:38:56

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