Ajax experiences (1)

I have been learning Ajax for nearly two weeks and found that it is not as difficult as I thought, but it is not simple. This is for my own level. Javascript The script is almost ignorant, but now I have had the most basic understanding of the Javascript syntax structure and keywords since I learned Ajax. at the same time, my XML is nothing, and now I have a preliminary understanding of XML, you can also write some basic XML language. and CSS ......
Well, have you read what I wrote? What am I talking about? Why do you say so much nonsense at the beginning? haha! If you think so, you will be wrong. In fact, I have already explained some basic elements of Ajax and the technical language to be used. however, the most important keyword is "Asynchronous ".
I think everyone is only interested in Ajax. I think "Asynchronous" should be a very important factor. Program Developers, the word "ispostback" will be very clear, and there will be a lot Article But the final result is that every "ispostback" will waste a lot of resources, especially the rise of web, B/S is a trend, this waste of resources will limit the development of the website itself, therefore, "Asynchronous" submission has a space for presentation.
Ajax results can also be implemented using JavaScript. In Ajax, JavaScript is an important factor, which means that many functions are implemented by the client, however, Ajax is not charming. It achieves effective compatibility between "client" and "server" and updates a certain section of the client, but it also has a bad side, that is, although the page does not need to be reloaded on the server, if a certain section of the page interacts with the server too frequently, the problem may also occur. this will increase the pressure on the server. so although Ajax is good, it cannot be abused!
I wrote this article very little. Although I have a lot of ideas to express, I have no choice but to express myself in words. If I have like-minded friends, I can add my group: 22434738; we have a lot of discussions.