bootstrap-datepicker

Bootstrap-datepicker is a JavaScript library that adds a calendar date picker to web forms. When a user clicks on a date input field in a web page, a small calendar popup appears, letting them select a date by clicking rather than typing. The library is built to work with Bootstrap, a widely used set of CSS and JavaScript components for building consistent-looking web interfaces.

The library is one of the oldest and most downloaded date picker add-ons in the Bootstrap ecosystem. It handles things like formatting the selected date, restricting which dates can be chosen, and displaying the calendar in different languages. An online demo is available on the project's GitHub Pages site, and full documentation lives on a separate ReadTheDocs page rather than in the repository itself.

The README for this project is sparse. It contains links to the documentation, demo, CDN hosting details, and brief notes on how to set up a development environment to contribute. The actual configuration options, events, and usage instructions are not in the README and must be read in the external documentation.

Installation is straightforward: the library can be loaded directly from a content delivery network without downloading anything, or installed via npm or yarn for projects that use a build process. The project is licensed under the Apache 2.0 license.

This is a mature, widely adopted library that has been around for many years, but its age also means that more modern alternatives exist for projects not already tied to Bootstrap. If you are building a new project, the README does not discuss alternatives or trade-offs, as it is focused entirely on existing users of the library.