✨ feat(nvim): add some new useful autocmds on ftplugin

.config/nvim/after/ftplugin/javascriptreact.lua

@@ -0,0 +1,16 @@
+-- Automatically end a self-closing tag when pressing /
+vim.keymap.set("i", "/", function()
+  local node = vim.treesitter.get_node()
+  if not node then
+    return "/"
+  end
+
+  if node:type() == "jsx_opening_element" then
+    local char_at_cursor = vim.fn.strcharpart(vim.fn.strpart(vim.fn.getline("."), vim.fn.col(".") - 2), 0, 1)
+    local already_have_space = char_at_cursor == " "
+
+    return already_have_space and "/>" or " />"
+  end
+
+  return "/"
+end, { expr = true, buffer = true })

.config/nvim/after/ftplugin/json.lua

@@ -1 +1,13 @@
 vim.opt.conceallevel = 0
+
+-- When creating a new line with o, make sure there is a trailing comma on the current line
+vim.keymap.set("n", "o", function()
+  local line = vim.api.nvim_get_current_line()
+
+  local should_add_comma = string.find(line, "[^,{[]$")
+  if should_add_comma then
+    return "A,<cr>"
+  else
+    return "o"
+  end
+end, { buffer = true, expr = true })

.config/nvim/after/ftplugin/jsonc.lua

@@ -1 +1,13 @@
 vim.opt.conceallevel = 0
+
+-- When creating a new line with o, make sure there is a trailing comma on the current line
+vim.keymap.set("n", "o", function()
+  local line = vim.api.nvim_get_current_line()
+
+  local should_add_comma = string.find(line, "[^,{[]$")
+  if should_add_comma then
+    return "A,<cr>"
+  else
+    return "o"
+  end
+end, { buffer = true, expr = true })

.config/nvim/after/ftplugin/typescriptreact.lua

@@ -0,0 +1,16 @@
+-- Automatically end a self-closing tag when pressing /
+vim.keymap.set("i", "/", function()
+  local node = vim.treesitter.get_node()
+  if not node then
+    return "/"
+  end
+
+  if node:type() == "jsx_opening_element" then
+    local char_at_cursor = vim.fn.strcharpart(vim.fn.strpart(vim.fn.getline("."), vim.fn.col(".") - 2), 0, 1)
+    local already_have_space = char_at_cursor == " "
+
+    return already_have_space and "/>" or " />"
+  end
+
+  return "/"
+end, { expr = true, buffer = true })

.config/nvim/lazyvim.json

@@ -107,4 +107,5 @@
     "NEWS.md": "2123"
   },
   "version": 2
-}
+}
+