First commit.

lisp/modes/javascript.el

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+;;; javascript.el --- initializes JavaScript modes -*- lexical-binding: t; -*-
+;;; Commentary:
+;;; Code:
+
+(defun user--javascript-mode-common-hook ()
+  "JavaScript common mode hook."
+  ;; ;; Load CEDET
+  ;; (user--javascript-mode-cedet-hook)
+
+  ;; (user/gnu-global-enable)
+
+  (flycheck-mode t)
+  
+  ;; (tern-mode t)
+  )
+
+
+(defun user--javascript-mode-hook ()
+  "JavaScript mode hook."
+  (user--javascript-mode-common-hook))
+
+
+(defun user--inferior-js-mode-hook ()
+  "Inferior JavaScript mode hook."
+  ;; Support ANSI colors.
+  (ansi-color-for-comint-mode-on))
+
+
+(defun user--js2-mode-hook ()
+  "JS2 mode hook."
+  (user--javascript-mode-common-hook)
+  ;; Enable smart indentation
+  (smart-tabs-mode t)
+  ;; Enable Flycheck
+  (flycheck-mode t))
+
+
+;; (defun user--javascript-mode-cedet-hook ()
+;;   "JavaScript CEDET support hook."
+;;   (with-feature 'semantic/wisent/javascript
+;;     (wisent-javascript-setup-parser)
+;;     ;; (user--cedet-hook)
+;;     ))
+
+;;
+;;
+(use-package js
+  :defer
+  :hook ((javascript-mode-hook . user--javascript-mode-hook)
+         (inferior-js-mode-hook . user--inferior-javascript-mode-hook)))
+
+  ;; https://github.com/mooz/js2-mode
+  ;; Improved JavaScript editing mode for GNU Emacs
+(use-package js2-mode
+  :defer
+  :mode "\.[m]js$"
+  ;; :mode "\.ts$"
+  :magic "#!/usr/bin/env node"
+  :hook (js2-mode-hook . user--js2-mode-hook)
+  :config
+  (validate-setq
+  ;;  ;; Configure indentation
+  ;; (setq js2-enter-indents-newline t)
+  ;; (setq js2-auto-indent-p t)
+   ;; Idle timeout before reparsing buffer
+   js2-idle-timer-delay 0.5
+   ;; Disable error parsing in favor of Flycheck
+   js2-strict-missing-semi-warning nil)
+
+  ;; https://github.com/redguardtoo/js-comint
+  ;; js-comint will send the code from Emacs into node.js or rhino
+  (use-package js-comint
+    :disabled
+    :config
+    (validate-setq
+     ;; Set JavaScript inferior.
+     inferior-js-program-command
+     (cond
+      ((executable-find "js") (executable-find "js"))
+      ((executable-find "node")
+       (concat (executable-find "node") " --interactive"))
+      (t "java org.mozilla.javascript.tools.shell.Main")))
+
+    ;; Workaround for Node.js prompt.
+    (setenv "NODE_NO_READLINE" "1"))
+
+  ;; https://github.com/prettier/prettier-emacs
+  ;; Minor mode to format JS code on file save 
+  (use-package prettier-js
+    :disabled)
+
+  ;; https://emacs-lsp.github.io/lsp-mode/page/lsp-typescript-javascript/
+  (use-package lsp-javascript-typescript
+    :disabled
+    :if (executable-find "javascript-typescript-langserver")
+    :hook (js2-mode-hook . lsp-javascript-typescript-enable))
+
+  ;; https://github.com/torgeir/helm-js-codemod.el
+  ;; A helm interface for running js-codemod.el
+  (use-package helm-js-codemod
+    :disabled
+    :if (executable-find "jscodeshift"))
+
+  ;; https://github.com/js-emacs/xref-js2
+  ;; Jump to references/definitions using ag & js2-mode's AST in Emacs
+  (use-package xref-js2
+    :init
+    (add-hook 'xref-backend-functions #'xref-js2-xref-backend nil t)))
+
+
+(provide 'modes/javascript)
+;;; javascript.el ends here