Use typescript mode for anything Javascript related

.spacemacs.d/init.el

@@ -11,17 +11,3 @@
 (load-file "~/.spacemacs.d/spacemacs-init.el")
 (load-file "~/.spacemacs.d/spacemacs-user-init.el")
 (load-file "~/.spacemacs.d/spacemacs-user-config.el")
-(custom-set-variables
- ;; custom-set-variables was added by Custom.
- ;; If you edit it by hand, you could mess it up, so be careful.
- ;; Your init file should contain only one such instance.
- ;; If there is more than one, they won't work right.
- '(package-selected-packages
-   (quote
-    (ox-gfm zenburn-theme zen-and-art-theme yapfify yaml-mode ws-butler winum white-sand-theme which-key web-mode web-beautify volatile-highlights vi-tilde-fringe uuidgen use-package unfill underwater-theme ujelly-theme twilight-theme twilight-bright-theme twilight-anti-bright-theme toxi-theme toml-mode toc-org tide tao-theme tangotango-theme tango-plus-theme tango-2-theme tagedit swift-mode sunny-day-theme sublime-themes subatomic256-theme subatomic-theme sql-indent spaceline spacegray-theme soothe-theme solarized-theme soft-stone-theme soft-morning-theme soft-charcoal-theme smyx-theme slim-mode seti-theme scss-mode sass-mode reverse-theme restart-emacs request rebecca-theme rainbow-mode rainbow-identifiers rainbow-delimiters railscasts-theme racer pyvenv pytest pyenv-mode py-isort purple-haze-theme pug-mode professional-theme popwin planet-theme pip-requirements phpunit phpcbf php-extras php-auto-yasnippets phoenix-dark-pink-theme phoenix-dark-mono-theme persp-mode pcre2el paradox organic-green-theme org-projectile org-present org-pomodoro org-mime org-download org-bullets open-junk-file omtose-phellack-theme oldlace-theme occidental-theme obsidian-theme noctilux-theme neotree naquadah-theme mwim mustang-theme move-text monokai-theme monochrome-theme molokai-theme moe-theme mmm-mode minimal-theme material-theme markdown-toc majapahit-theme madhat2r-theme macrostep lush-theme lorem-ipsum livid-mode live-py-mode linum-relative link-hint light-soap-theme json-mode js2-refactor js-doc jbeans-theme jazz-theme ir-black-theme insert-shebang inkpot-theme indent-guide hy-mode hungry-delete htmlize hl-todo highlight-parentheses highlight-numbers highlight-indentation heroku-theme hemisu-theme helm-themes helm-swoop helm-pydoc helm-projectile helm-mode-manager helm-make helm-flx helm-descbinds helm-css-scss helm-company helm-c-yasnippet helm-ag hc-zenburn-theme gruvbox-theme gruber-darker-theme grandshell-theme gotham-theme google-translate golden-ratio gnuplot gh-md gandalf-theme fuzzy flyspell-correct-helm flycheck-rust flycheck-pos-tip flx-ido flatui-theme flatland-theme fish-mode fill-column-indicator farmhouse-theme fancy-battery eyebrowse expand-region exotica-theme exec-path-from-shell evil-visualstar evil-visual-mark-mode evil-unimpaired evil-tutor evil-surround evil-search-highlight-persist evil-numbers evil-nerd-commenter evil-mc evil-matchit evil-lisp-state evil-indent-plus evil-iedit-state evil-exchange evil-escape evil-ediff evil-args evil-anzu eval-sexp-fu espresso-theme emmet-mode elisp-slime-nav editorconfig dumb-jump drupal-mode dracula-theme django-theme diminish define-word darktooth-theme darkokai-theme darkmine-theme darkburn-theme dakrone-theme cython-mode cyberpunk-theme company-web company-tern company-statistics company-shell company-anaconda column-enforce-mode color-theme-sanityinc-tomorrow color-theme-sanityinc-solarized color-identifiers-mode coffee-mode clues-theme clean-aindent-mode cherry-blossom-theme cargo busybee-theme bubbleberry-theme birds-of-paradise-plus-theme badwolf-theme auto-yasnippet auto-highlight-symbol auto-dictionary auto-compile apropospriate-theme anti-zenburn-theme ample-zen-theme ample-theme all-the-icons alect-themes aggressive-indent afternoon-theme adaptive-wrap ace-window ace-link ace-jump-helm-line ac-ispell))))
-(custom-set-faces
- ;; custom-set-faces was added by Custom.
- ;; If you edit it by hand, you could mess it up, so be careful.
- ;; Your init file should contain only one such instance.
- ;; If there is more than one, they won't work right.
- '(default ((((class color) (min-colors 89)) (:foreground "#ffffff" :background "#263238")))))

.spacemacs.d/spacemacs-layers.el

@@ -65,8 +65,8 @@ values."
      ;;        shell-default-height 30
      ;;        shell-default-position 'bottom)
      (org :variables org-enable-github-support t)
-     spell-checking
+     (spell-checking :variables =enable-flyspell-auto-completion= t)
-     syntax-checking
+     (syntax-checking :variables syntax-checking-use-original-bitmaps t)
      themes-megapack
      ;; version-control
      )

.spacemacs.d/spacemacs-user-config.el

@@ -12,6 +12,8 @@ you should place your code here."
   (setq neo-theme (if (display-graphic-p) 'icons 'arrow))
   (setq neo-vc-integration '(face))
 
-  ;; typescript mode
+  ;; Use typescript mode for js/jsx too
+  (add-to-list 'auto-mode-alist '("\\.js\\'" . typescript-mode))
+  (add-to-list 'auto-mode-alist '("\\.jsx\\'" . typescript-mode))
   (add-to-list 'auto-mode-alist '("\\.tsx\\'" . typescript-mode))
 )