JavaScript gets the values within the <td> tag.

When a Web page is loaded, the browser creates a Document object model for the page.

The HTML DOM model is constructed as a tree of objects.

With the programmable object model, JavaScript has the ability to create dynamic HTML. There are so-called:

• JavaScript can change all HTML elements in a page
• JavaScript can change all HTML attributes in a page
• JavaScript can change all CSS styles in a page
• JavaScript can react to all the events in the page

JavaScript is so powerful ....

About getting the value of the element, at JS end there is getElementById () and, jquery has $ ("#"), and there is a certain difference. jquery is used in the project, and when you get the plain text content in <td>,

Use the $ ("#elementId"). Val ().

The first mistake is that the Val () method should not be used, but the text () method should be used instead. The Val () method applies only to the form, reference.

Then the result is still wrong, asked leader, know that the obtained plain text may contain spaces and the like, resulting in a subsequent program exception. So here you should use the TRIM function as follows:

$.trim ($ ("#elementId"). Text ())

JavaScript gets the values within the <td> tag.