id,page,ref,title,content,breadcrumbs,references
javascript_plugins:javascript-datasette-init,javascript_plugins,javascript-datasette-init,The datasette_init event,"Datasette emits a custom event called  datasette_init  when the page is loaded. This event is dispatched on the  document  object, and includes a  detail  object with a reference to the  datasetteManager  object. 
             Your JavaScript code can listen out for this event using  document.addEventListener()  like this: 
             document.addEventListener(""datasette_init"", function (evt) {
    const manager = evt.detail;
    console.log(""Datasette version:"", manager.VERSION);
});","[""JavaScript plugins""]",[]
javascript_plugins:javascript-datasette-manager-selectors,javascript_plugins,javascript-datasette-manager-selectors,Selectors,"These are available on the  selectors  property of the  datasetteManager  object. 
             const DOM_SELECTORS = {
  /** Should have one match */
  jsonExportLink: "".export-links a[href*=json]"",

  /** Event listeners that go outside of the main table, e.g. existing scroll listener */
  tableWrapper: "".table-wrapper"",
  table: ""table.rows-and-columns"",
  aboveTablePanel: "".above-table-panel"",

  // These could have multiple matches
  /** Used for selecting table headers. Use makeColumnActions if you want to add menu items. */
  tableHeaders: `table.rows-and-columns th`,

  /** Used to add ""where""  clauses to query using direct manipulation */
  filterRows: "".filter-row"",
  /** Used to show top available enum values for a column (""facets"") */
  facetResults: "".facet-results [data-column]"",
};","[""JavaScript plugins""]",[]
javascript_plugins:id1,javascript_plugins,id1,JavaScript plugins,"Datasette can run custom JavaScript in several different ways: 
         
             
                 Datasette plugins written in Python can use the  extra_js_urls()  or  extra_body_script()  plugin hooks to inject JavaScript into a page 
             
             
                 Datasette instances with  custom templates  can include additional JavaScript in those templates 
             
             
                 The  extra_js_urls  key in  datasette.yaml   can be used to include extra JavaScript 
             
         
         There are no limitations on what this JavaScript can do. It is executed directly by the browser, so it can manipulate the DOM, fetch additional data and do anything else that JavaScript is capable of. 
         
             Custom JavaScript has security implications, especially for authenticated Datasette instances where the JavaScript might run in the context of the authenticated user. It's important to carefully review any JavaScript you run in your Datasette instance.",[],[]
javascript_plugins:id2,javascript_plugins,id2,JavaScript plugin objects,"JavaScript plugins are blocks of code that can be registered with Datasette using the  registerPlugin()  method on the  datasetteManager  object. 
             The  implementation  object passed to this method should include a  version  key defining the plugin version, and one or more of the following named functions providing the implementation of the plugin:","[""JavaScript plugins""]",[]