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dw calls javascript method

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2023-05-26 20:58:351375browse

DW calls Javascript method

Dreamweaver is a powerful web design tool that integrates a Javascript code editor. When writing web pages, we usually use some Javascript functions to complete some interactive operations, such as form validation, page switching, interactive effects, etc. How to let Dreamweaver call Javascript method? Let’s discuss this issue below.

1. Create a function in the built-in Javascript editor of Dreamweaver

First, we write a function in the built-in Javascript editor of Dreamweaver, for example: 

function greeting() {
  alert("Hello World!");
}

The function of this function The function is to pop up a prompt box containing "Hello World!".

2. Embed the Javascript function into the HTML page

Next, we embed this function into a certain element in the HTML page, such as a button. You can follow the steps below:

  1. Open the corresponding HTML page file in Dreamweaver.
  2. Find a suitable position in the HTML page to insert the button element code, for example: 
<button onclick="greeting()">点击我</button>

The function of this button is to call the greeting function when clicked.

  1. Add an onclick event to the button element so that the function can be called when the button is clicked. The function is called inline, that is, the click event is added directly to the HTML element.

3. Test run

After completing the above steps, you can test the run page to verify whether the function is successfully called. You can:

  1. Click the "Preview" button in Dreamweaver or use a browser to browse the HTML page.
  2. Click the test button.

If everything goes well, you should see a prompt box popping up containing "Hello World!"

4. Other calling methods

In addition to calling Javascript functions inline in HTML pages, there are other ways to implement function calls.

  1. External Javascript file

We can save the written function in a separate .js file, and then use the 3f1c4e4b6b16bbbd69b2ee476dc4f83a tag in the head of the HTML page Import this file. In this way, you can use the function in the file to be called in the HTML page.

For example, write a greeting function in the Hello.js file, save the file, and add the following code to the HTML page: 

<script src="Hello.js"></script>

This way you can call Hello.js directly in the HTML page The greeting function in .

  1. Defining functions in the entire HTML document

We can also define Javascript functions in the head element of the entire HTML document. In this way, we can directly call this function anywhere in the entire HTML document.

For example, we can define a greeting function in the head element of the HTML document: 

<head>
  <script>
    function greeting() {
      alert("Hello World!");
    }
  </script>
</head>

In this way, the greeting function can be called directly anywhere in the HTML document.

To sum up, we can easily write Javascript functions in Dreamweaver and call them in HTML web pages. Through the methods introduced above, you can quickly understand and master how to let Dreamweaver call Javascript methods to achieve interactive effects and functions. Hope this article is helpful to you.

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JavaScript html 表单验证 JS 事件 dreamweaver
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