what is gantt fr?

Frappe Gantt is an open-source JavaScript library for displaying Gantt charts on a webpage. A Gantt chart is a horizontal bar chart used in project planning: each bar represents a task, its position shows when the task starts and ends, and arrows between bars show which tasks depend on others being finished first. Frappe Gantt was built because the team behind ERPNext (an open-source business software platform) needed a good-looking chart library and could not find one they liked. Adding the library to a webpage is straightforward: install it via npm or include two files (a script and a stylesheet) directly in the HTML. After that, you define a list of tasks with names, start dates, end dates, and a progress percentage, then point the library at an element on the page and it draws the chart. Updating the chart later is done by refreshing the task list. The chart supports several view modes so you can display the timeline in hours, days, weeks, months, or years. Holidays and weekends can be highlighted or excluded from progress calculations, which is useful when a task's duration should not count non-working days. Labels, bar dimensions, column widths, and arrow styles are all configurable through options passed when creating the chart. The library supports multiple languages for the date labels that appear on the timeline, which makes it easier to deploy in products used by international teams. Tasks can be dragged and resized directly in the browser, with an option to snap movement to specific intervals such as one day or one hour. Frappe Gantt has no external dependencies and works in any modern browser. It is used in production by ERPNext. The README includes a full table of configuration options and documents the available API methods for controlling the chart from JavaScript.