Hello World, knockouthello

Hello World, knockouthello

Learning KnockOut Hello World

I just started learning KnockOut. The content is equivalent to a learning note. In addition, I would like to pay tribute to the official website and like their Live Example forum, which contains jsFiddle. As for documents and tutorials, there are also some. Included address: KnockOut. If you are interested, you can take a look.

So, start.

You cannot write a Hello World record first. After reading the document, it looks very simple. Step 1 introduce ko's js script. Step 2: Create a ViewModel. Step 3: create a simple View and bind it with data-bind. A very simple text binding. 1 <! DOCTYPE html> 2 Check the running result:

Nothing, but the bound data is not displayed. Let's take a look at the document first. It turns out to be a few lines of code. It cannot be missing: myViewModel = ko. applyBindings (myViewModel ). Only when the data-bind attribute is available can it be recognized by the browser. Its function can be understood as activating KnockOut. The name after the text is followed by this line of code will prompt intelligently. So the clever way is to write the VM, then write it, and finally write V, there will be smart prompts when writing V. 1 <! DOCTYPE html> 2 The binding should always be successful:

Yes, it succeeded. You can't forget to activate KO code.

 

 

The landlord bullied me to read less books and had no culture. I only wrote a simple declarative binding, not to say that KO could automatically refresh the UI or something. Is it a little boring to write it out? Well, I didn't bully you. It's just that the primary author is involved in KO, so it's a beginner. What you said should be the function that automatically refreshes the page when the model status changes. I just learned this. Write a Hello World for the KO automatic refresh page. You can refer to the following code.
1 <! DOCTYPE html> 2 I didn't understand the code, was it bullied or uncultured by you, because I never saw any Hello World.

The code can read Hello World. Explain the code first.

Ko. observable is a very, very basic concept. What it can do is to change the Monitoring Value and respond to its corresponding changes. Ko. computed, which is used to calculate the value of the monitoring attribute (E is weak, so I simply understand it ). For example, the first monitoring word and the second monitoring word are combined above. Then, let's see if there will be "Hi Ando" shown to us at the end. Yes. However, the poster still does not see Hello World. ko. computed can calculate the changes to the monitored values (here, the two monitored values are combined), so without changing the code, if we change the first value on the page to "Hello" and the second value to "World", will we see "Hello World" below? Let's try. Decisive success. This is because the first learning note for learning KO is here. Although the learning content is simple and it takes time to write a blog, it is still improving, isn't it? I also hope that I can continue to learn KO and write down my blog. If I can meet some friends who can learn KO together, it is also very good.

I am now listening to the ink painting Dan Qing Phoenix City, sitting in the chair, think of the sentence: Like a king!

 

Java Hello world

LZ is a common problem for beginners.
These are all habits and problems.
1. The class name specification in Java is written in uppercase. Your code should be public class Hello.
2. in java code, all the other Chinese characters should be entered using the English input method. In your code, the syntax is correct. It should be that some friends of LSD use Chinese characters "() "or"; "can be changed to Chinese.

Source of hello world

Why do programming go from "Hello world !" Start

"Hello World !" The program prints "Hello World!" only on the computer screen !" ("Hello, world !") String. This program is usually the first program written by beginners in computer programming languages. It can also be used to determine whether the language's compiler, program development environment, and runtime environment have been installed.

Set "Hello World !" As the first program, programs have now become a precious tradition. This program first appeared in the book C programming language written by Brian Kernighan and Dennis Ritchie. C programming language is the most authoritative C language textbook. The two authors are the famous C language inventor, nicknamed "K & R ".
Reference: bbs.sooopu.com/thread-1136-1-1.html