About the JavaScript engine of various browsers-[Leaf]

Recently, in order to increase the visual effect and operation convenience of a module in the project, the jquery-week-calendar control is used in the project. After data interaction, it is found that the speed on IE6 is very slow, and the effect on IE7 or IE8 is not satisfactory. The speed on Firefox 3.5 and chrome is satisfactory.

Why is this problem? Personal analysis is mainly about the JavaScript engine of the browser. The JavaScript engine determines the speed of parsing JavaScript.

The JavaScript engine is a new direction in the browser war. Every vendor is promoting the performance of their browsers this year, hoping to take advantage of the competition.

We can often see information similar to the following on the Internet:

1. Chrome's V8 JavaScript Engine increases the loading speed of webpages containing a large amount of JavaScript by 30%.

 

2. Opera announced that the new JS engine "carakan" was 2.5 times faster.

 

3. Firefox 3.5 has a brand new JavaScript Engine called tracemonkey, which is three to four times faster than Firefox 3 to run JS applications.

 

4. Safari's new JS engine squirrelfish is very fast.

 

5. Ao you browser 3.0.3.3 Alpha JS engine upgrade, with the script execution speed improved by 9%.

When various browsers competed to upgrade the JS engine, they did not hear the news that IE was about to upgrade the JS engine.

In China, Internet Explorer still occupies the largest market share, and many customers do not want to change their browsers. How should we choose as software developers, it may be temporary to avoid using a large number of JavaScript files in the project. I hope that the days for the IE browser to upgrade the JavaScript engine will not be far away.