SEARCH KEYWORD -- Cross browser compatibility
Understanding the "this" keyword in JavaScript
Many people get tripped up by the this keyword in JavaScript. I think the confusion comes from people reasonably expecting this to work like “this†does in Java or the way people use “self†in Python. Although this is sometimes used to similar effect, it’s nothing like “this†in Java or other languages. And while it’s a little harder to understand, its behavior isn’t magic. In fact, this follows a relatively small set of simple rules. This...
JavaScript,this,understanding 2012-03-29 13:48:59
JavaScript tutorial - Creating time delays
There are two ways of creating time delays with JavaScript. The first is more simple and will simply wait for a specified amount of time before executing a function. The second does the same but will repeatedly execute the function. Note, many browsers have a minimum delay length of between 25 and 75 ms, with some of the fastest browsers having a minimum delay of about 3 ms. If a shorter delay is specified, the actual delay will be the minimum delay length. Even with higher numbers, the delay i...
JavaScript,Time delay,setTimeout,setInterval 2012-04-13 07:17:46
Diving Deeper into HTML5 Offline Browsing
Recently, I published an article on one of the new features in HTML 5 called Offline Browsing in HTML5 with ApplicationCache.The response to that article was good, and I was asked to expand on some further points including:how to decide on what files to cachethe implications of caching those filesdebugging the ApplicationCacheSo, that’s where this article will start: where the last one finished. If you haven’t, you should probably read the previous article before this o...
HTML5,Offline browsing,New breakthrough,Feature 2011-12-20 08:46:06
Chrome to provide native image lazyload support
Previously we have introduced how Medium achieved loading images lazily, basically what they did was using lots of HTML tags and CSSs to change the images at different stage. It needs lots of code to do this. With the high demand of this feature for resource consumption and performance consideration, Chrome is now working on a feature to provide native support for loading images/iframes lazily. This feature is named lazyload. lazyload will allow three values: auto: the default behavior of ...
FONT SIZING WITH REM
Determining a unit of measurement to size our text can be a topic of heated debate, even in this day and age. Unfortunately, there are still various pros and cons that make the various techniques less desirable. It's just a matter of which less-desirable is most desirable.There are two main techniques that are extolled:Size with pxSize with emLet's review these two approaches before I reveal the magical third.Sizing with pxIn the early days of the web, we used pixels to size our text. It's relia...
Using JavaScript to operate clipboard
Browsers allow JavaScript to read and write data on clipboard. Generally script should not modify user's clipboard to avoid impacting user expectation, but there are cases where this can indeed bring convenience to users. For example, for some code snippet, user can copy it to clipboard with one click instead of select and copy manually. There are three options for clipboard operation provided in JavaScript/browser: document.execCommand() Asynchronous Clipboard API copy and paste events This p...
JAVASCRIPT,CLIPBOARD,NAVIGATOR.CLIPBOARD 2021-01-23 23:23:34
The craziest Javascript implementations
Since its birth in 1994, Javascript has come a long way. Today it’s one of the most popular programming languages on the web because of high popularity of AJAX based web-applications. Also the rise of micro-frameworks such as jQuery (also Prototype, Moo Tools etc) which have reduced dramatically the complexity of code developers needed to write, it is well tested, has a ton of plug-ins, has a large development community and reduced development time.And lately even Server-S...
JavaScript,Crazy implementation,JVM,Turing machine 2012-01-03 12:09:42
Tom Uglow from Google : 5 steps to innovation
Google has been known for its innovation In Google there is a "welfare": each employee can spare 20% of his/her time to do what he/she likes to do so that any idea has a chance to be turned into reality. Perhaps this freedom makes Google capable of introducing new products and new ideas continuously. Google China held a small discussion session in its office in Tsinghua Science Park recently, Google Creative Director Tom Uglow shared some experience and cases of Google in production and innovat...
Innovation,Technology,Google 2012-10-10 20:00:47
How to monitor user behavior in webpage
Sometimes there is a need for website owners to monitor user behavior on the site so that they can know what pages are mostly visited and which parts are more popular so that they can provide better service to their users. These behavior usually contain user clicks, user mouse over events etc. These data can be sent back to server when triggered with some meta data. In this post, we will cover a few ways to monitor user behavior on a web portal and send data back to backend sever. 1. Synchronous...
HTML,BEACON API,PING,USER BEHAVIOR 2019-06-29 06:06:59
Is Python all set to triumph over Java?
Python is one of the top programming languages of the present time. A variety of companies with different backgrounds and offerings have embraced the capabilities of Python to make wonderful tech products. As, Java is also known to be one of the most recognized languages, therefore, there is a constant battle that takes place between the two languages. Python wants to dethrone Java as the number one, whenever it is and vice versa. It is like the tussle between Android and iOS which is never endi...
JAVA,DEVELOPMENT,PYTHON,DJANGO 2018-08-28 01:32:56
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