If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.

Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

Simply create a JavaScript function that contains the statement and call it whenever you need a text box. However, you can also set the text box's value and ID attributes as follows: ...

Before passing a .NET object to a JavaScript function, your C# code must wrap it in a DotNetObjectRef object. As an example, the following code in my project's Index.cshtml OnInitAsync method ...

The JavaScript in Listing B handles this task. The function is called when the user submits the form. This may be handled with an HTML button’s onSubmit event: ...

Output: The results of executing the CSS, HTML, and JavaScript entered into the sections of the page. Figure A shows jsFiddle loaded in Internet Explorer 9 with empty code panes.