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  this in JavaScript

this is a keyword in JavaScript. It refers to an internal object created automatically when a function executes, it can only be used in a function. For example:        function test(){ 　　　　this.x = 1; 　　}The this keyword will change when a function is called in different situations. However, the general rule is : this refers to the object which calls the function.Next we discuss the use of this in 4 different situatio...

   this,keyword,use,JavaScript     2012-05-05 12:47:37

  Market share of Android approaches 70% globally

According to Sina Tech, research firm Kantar Worldpanel's latest report shows that market share of Android phones exceeds 70% in UK, Germany, France, Italy and Spain from March to May, thus drives the global market share of Android close to 70% .The report shows that despite the popularity of smart phones in developed countries slows down, but Android continues its growth. During this period, market share of Android in Europe is 70.4% which is nearly 10% higher than the same period last year. Ap...

   Android,Market share,Europe     2013-07-01 08:21:56

  this in JavaScript in detail

this in JavaScript is always confusing, it is one of the most frequently seen traps in JavaScript. this is not a good design in JavaScript(You can refer some other design flaws of JavaScript here), since it's lazy binding feature, it can be a global object, the current object or.... Some people even avoid using this in JavaScript. Actually if you master how this works, then you will know how to stay away from these traps. Let's take a look at what this points to in below situations. 1. In global...

   JavaScript,this,bind     2013-05-09 18:35:12

  Samsung S3 defeats iPhone 4S in sales in Q3

The market research firm Strategy Analytics publishes a research report which states global sales of Samsung Galaxy S3 is over iPhone 4S in the third quarter of 2012, it becomes the most popular mobile phone.From the chart below, Galaxy S3 was sold 18 million units in Q3, while iPhone 4S was sold 16.2 million units. Galaxy S3 took market share of 10.7%, and iPhone 4S took 9.7%.Perhaps people are not willing to buy iPhone 4S due to the launch of the iPhone 5, the iPhone 4S sales lost to Gala...

   Samsung S3,sale,iPhone 4S     2012-11-08 11:22:54

  Frequently used Git commands

Git configuration git config --global user.name "robbin" git config --global user.email "fankai@gmail.com" git config --global color.ui true git config --global alias.co checkout git config --global alias.ci commit git config --global alias.st status git config --global alias.br branch git config --global core.editor "mate -w" # Configure Editor to use textmate git config -l #List all configurations User's git configuration file : ~/.gitconfig Frequently used Git commands Check、add...

   Git,Command     2013-03-11 19:41:06

  Want to Expand Your Customer Base Globally? A Global Phone Number Is Your First Step

If you want your establishment to connect to the world, you’re in luck. Thanks to technology development, it’s much easier to do this now more than ever. But with this global expansion, you should have a few assets to help you with your success. To maintain your business reachability no matter where your customer is, you can start with a global phone number provided by companies like Telnum. If you’re not sure if it’s the right move, we’ll help you decide whether i...

   VOIP,BUSINESS     2024-01-04 05:28:19

  Ways to check existence of JavaScript object

The design of JavaScript is not so sophisticated. It's very easy for us to make mistakes if we are not very careful when using JavaScript. For example, to check the existence of JavaScript object. Now we want to check whether a global object myObj exists or not, if it doesn't exist, we declare it. The pseudo code for this is : if(myObj not exist){ declare myObj; } You may think it's very easy to write the code. In fact, it is much more difficult than we may think. Juriy Zaytsev says there are m...

   JAVASCRIPT,OBJECT,EXISTENCE     2020-09-12 02:14:02

  Browser market share in June

Recently, the Internet research firm Net Application announced the browser market share report in June, IE's global market share grows to 56.15% in June from 55.99% in May, an increase of 0.16%. However, Firefox drops by 1.48%, its market share is 19.15% in May. Chrome grow by 1.43% to 17.17% in June. Meanwhile, Safari increases by 0.09% to 5.55%, Opera drops 0.19% to 1.58%. For different versions of IE browsers, IE10's global market share is 13.52%, monthly market share increases by 4.26% in J...

   Browser market share,June 2013,Chrome     2013-07-02 03:20:08

  Understand this in JavaScript

In JavaScript, this is always pointing to the owner of a function or a method. Function Let's check out function first. function introduce() {      alert("Hello, I am Laruence\r\n"); } For this function, what does this point to? In JavaScript, a global function's owner is the current page, i.e, the window object. Because its a method of the window object if we define a global function. Now you should know the this will point to the window object in the above function. ...

   JavaScript,this,event,call     2013-04-03 04:10:03

  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

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