JavaScript Tutorials
JavaScriptJavaScript Radio Object
Interaction with JavaScript can still be possible with simple HTML-based objects. This allows developers to create an application with the familiarity of HTML using the powerful interaction provided by JavaScript engines in browsers. A good example of the HTML advantage is the radio object. In gist, this object allows developers to create a list of choices for users. It's added in the application to allow choices and use those choices later in the application.
The syntax of Radio object in JavaScript is a combination of tag "radio" with HTML <input>. Without the radio tag, the function would simply become a form.
If you're considering using Radio Object in JavaScript, here are some tips:
1. Determine the "Name" Attribute Before Value
The "Name" attribute in JavaScript is almost the same as tagging. But it has a significant role in the application particularly on forms. Before developers could implement radio buttons on the application, the "Name" of the form should be determined first. This is very important since each radio instance should have the same tag with the name. With this method, the JavaScript engine will simply associate the radio buttons with the application. This also prevents overlapping of selection.
2. Radio should be implemented within Form
As already indicated, the radio object is part of the application that interacts with user's preferences of data. The radio object receives information from users and directs the information to various functions. Because of this role in the application, radio objects should be implemented within the FORM object. This presents convenience to developers as well as ease of interaction for the browser. Radio inside the form object will allow the JavaScript engine in each browser to prepare for the type of interaction needed.
3. Simplifying properties in Radio object
The properties for radio object can be confusing for developers because of the extensive choices. But the additional choices are those who wanted to gain more from radio selection. If the developer simply wants to have radio objects for efficient selection of information, the basic properties can be used. The basic properties for radio object are the following:
• Form
• Name
• Type
• Value
• Default (The default selection when users fail or chooses to let the system select the needed information)
When these properties are implemented, the right radio selection should be enabled for users. JavaScript engine will treat radio object as a light function so implementation is even faster.
4. Same Ideas for Methods and Event Handlers
Even though radio object provides little interaction for users, the object comes with variety of methods. Keep it simple by only using the "click" method. Other methods such as "blur" or "focus" will only require more from JavaScript engine but no advantage for users.
Even handlers should also work with methods. Since simplicity is the key, event handlers should also provide a straight forward function for developers. A third party function or source code can be used but developers have to make sure that the source is stable and could load as fast as the application.
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