How do I activate a TextBox if I select an option in a dropdown box in HTML?

When an item (option) is selected in DropDownList (HTML SELECT), the EnableDisableTextBox JavaScript function is executed. Inside this function, based on whether the Other option (item) is selected, the TextBox will be enabled else disabled. The HTML Markup consists of a DropDownList (HTML SELECT) and a TextBox.

How to show and hide an element using JavaScript?

Set native display style to none

Set CSS style property to none This method allows you to use other properties,such as opacity or visibility.

Remove the element from the DOM This method is irreversible,as the element is completely gone. It needs to be added using another JavaScript action.

How to hide or show a Div?

Create React App

Set up Bootstrap 4

Create Hide Show Div Component. In this step,visit src directory of your react js app and create some components named Comp1.js,Comp.js,and Hideshow.js.

Add Component in App.js. Recommended:- How to Check React App Version?

How to hide JSON data by creating a Div?

As mentioned,an extra round of escaping is needed,which increases the size of the JSON-formatted data.

It requires DOM operations (which are generally slow in JavaScript) to read out the data.

To convert the data back to a JavaScript object,JSON.parse () must be called at runtime.

How to make a Div visible and invisible with JavaScript?

Definition and Usage. The visibility property sets or returns whether an element should be visible. The visibility property allows the author to show or hide an element.

Browser Support

Syntax

Property Values. The element is visible. Sets this property to its default value. Inherits this property from its parent element.

Technical Details

More Examples