lsp.CompletionOptions

Most tools trigger completion request automatically without explicitly requesting it using a keyboard shortcut (e.g. Ctrl+Space). Typically they do so when the user starts to type an identifier. For example if the user types c in a JavaScript file code complete will automatically pop up present console besides others as a completion item. Characters that make up identifiers don't need to be listed here.

If code complete should automatically be trigger on characters not being valid inside an identifier (for example . in JavaScript) list them in triggerCharacters.

The server provides support to resolve additional information for a completion item.