How to call classic asp function from JavaScript with parameters?

First, create JavaScript function that will call the asp function. You can call it using ASP.NET Page Method or Web Service method. If you use Page Method approach, add ScriptMethod attribute to your function declaration.

If you use Web Service approach, add WebMethod attribute to your function declaration. When you call a function from JavaScript to a classic ASP page, you need to provide three things: the name of the function, the names of the function’s arguments, and the values of the function’s arguments.

The function name must be a valid JavaScript function name and must not start with a pound sign (#). The values of the function’s arguments will be passed to the function as variables. If the function takes more than five arguments, the first argument must be named The following example demonstrates how to call a JavaScript function that has two arguments from a classic ASP page.

Assume that you have a function called myFunction with two arguments named a and b.

The function returns the sum of these two arguments:

How to call classic asp function in JavaScript with parameters?

You can call any classic ASP function from javascript passing some arguments while using the ASP keyword like this: We have two options to call asp function from JavaScript: Using Server-side or Client-side.

When you call a function on the server-side, it returns the output. The return value of the function is then assigned to the JavaScript variable. To send the data back to the calling JavaScript function, the function must be written as a web service.

There are several ways to do it. For example, you can use an ASP.NET web service. Or, you can use XML web To call a function with the help of JavaScript, you must include the ASP keyword before the function name. The keyword will call the function on the server-side. It will return the output as a String value.

Now we need to transfer this output to the JavaScript function. So, you will put the returned value inside the JavaScript variable.

How to call classic asp function in JavaScript with parameters example?

To call a function from JavaScript to ASP classic you need to declare it first. Set up a separate JavaScript file that will contain all of the JavaScript code. The code below demonstrates how you can call a function from JavaScript. In order to call the function within the JavaScript code, you can use the “Call” function from the “classic asp” library.

This function allows you to call a function within classic asp code (in this example, a function named “func”) from JavaScript. The following line of JavaScript code can be used to call the function: You can also pass both the function name and any number of parameters to the function when calling it.

The following line of JavaScript code can be used to call the function named “func” with two parameters:

How to call classic asp function from JavaScript with no parameters?

If you want to call a function without passing any parameters, then you need to add a question mark after your function name. This will compile the function call into the JavaScript code. For example, if you call the function showMessage, this will compile into showMessage();.

The easiest way to call a function from JavaScript without passing any parameter is to use the Call keyword. It does not need the function name, so you can use the call keyword as the function name. In the examples above, you will notice that the classic asp function showMessage by default returns an empty string.

If you want to call the showMessage function from JavaScript, you need to add the question mark after the function name. This will compile the function call into the JavaScript code. So call the showMessage function without any passing any parameter and you will see an empty string returned.

How to call classic asp function in JavaScript with parameters

To call a classic asp function in JavaScript with a parameter, you need to use the classic ASP Register ServerScript method. Register ServerScript allows you to declare a function name and its arguments in the script block. Then, the function can be called by passing the function name and the parameters as an argument when creating an instance of the server-side JavaScript.

The best way to call a classic asp function from JavaScript is to use Server.Execute. When using Server.Execute, a single, multi-parameter function call can be made with the help of the Command argument.

Command can be used to execute any function, for example, a function that inserts data into a table. The Server.Execute syntax is: Server.Execute “FunctionName”, “FunctionParameter1”, “FunctionParameter2 To call the Register ServerScript function, you need to create a Script tag and add the Register ServerScript method in it.

The Register ServerScript method is a function, so you can pass the function name and the function argument to it, which is the function you want to call.