What is React?
What is React used for?
Allowing users to interact with and view images
With React, you can design how users see images and what happens to them on the web page when users take specific actions.
For example, you can set up a carousel of images that automatically rotates, showing the next image when the user clicks the right or left edge of the image. You can also decide whether to incorporate arrows indicating whether the user is going to the next image or the previous one.
Manage how text appears on a page
When a page needs to display text — either text entered by an end-user or inputted by the page’s designer — React can be used to ensure it fits within a specific area.
For example, if you need a user’s name to fit inside the user’s avatar, you can use code from the React library to ensure the text is sized correctly and doesn’t overlap the edges of the avatar. You can also designate a specific space within the avatar for the text to go, so it doesn’t cover the avatar’s image itself.
Pick date ranges on a calendar
If you’ve ever used a booking website and had to choose dates for visiting an area, staying at a hotel, or flying round trip, you may have been using an interface designed with React. React can make it possible for the end user to choose the time frame or number of days and include features that allow dates to be highlighted when users hover over them.
Select items from a column of choices
React can be used to enable users to choose options from a column on the left and shift them into a column on the right that indicates the options they are interested in. The positioning of the columns — left/right or right/left — can also be adjusted, as can the buttons the user clicks on to indicate their choice.
In addition, React can decide what happens during the selection process. For example, a button can change color when the user hovers over it, or a choice can be highlighted after it has moved from one column to the next.
Automatically generate charts
With React, you can include automatic chart generation within a web app. You can generate a chart from input coming in from a variety of data sources. Charts can then be rendered as an image that the user can download.
A chart’s colors, formatting, spacing, and other aesthetic elements can automatically be set using React.
Design input fields for web apps
React can make it easier for end users to enter information in data fields on a web app by including features that make data entry more convenient. For instance, you can use React to set up rules that interpret abbreviations as numbers, such as “k” for 1,000 or “m” for 1,000,000. You can also give users the option of deciding the currency symbol they would like to use. If there needs to be a limit on the value of what users can enter, you can use React to set maximum and minimum values.
Create interactive map views
Using APIs, such as Google’s map API, you can use React to alter how a map looks to an end user based on the choices they make. For instance, you can make the map larger or smaller as the user zooms in, or you can display more or fewer street details and landmarks depending on the zoom level.