@

configs/nvim/ftplugin/json.lua

@@ -1 +1,13 @@
 vim.cmd [[autocmd BufRead,BufNewFile tsconfig.json set filetype=jsonc]]
+
+-- ftplugin/json.lua
+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 })

configs/nvim/ftplugin/typescriptreact.lua

@@ -0,0 +1,38 @@
+-- ftplugin/vue.lua
+vim.keymap.set('i', '/', function()
+  local node = vim.treesitter.get_node()
+  if not node then
+    return '/'
+  end
+
+  local first_sibling_node = node:prev_named_sibling()
+  if not first_sibling_node then
+    return '/'
+  end
+
+  local parent_node = node:parent()
+  local is_tag_writing_in_progress = node:type() == 'text' and parent_node:type() == 'element'
+
+  local is_start_tag = first_sibling_node:type() == 'start_tag'
+
+  local start_tag_text = vim.treesitter.get_node_text(first_sibling_node, 0)
+  local tag_is_already_terminated = string.match(start_tag_text, '>$')
+
+  if
+      is_tag_writing_in_progress
+      and is_start_tag
+      and not tag_is_already_terminated
+  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 == ' '
+
+    -- We can also automatically add a space if there isn't one already
+    return already_have_space and '/>' or ' />'
+  end
+
+  return '/'
+end, { expr = true, buffer = true })