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(require 'flycheck)
(add-hook 'js2-mode-hook
(lambda () (flycheck-mode t)))
Used this, to setup flycheck for javascript development. However, i noticed config changes in .jshintrc is not considered at all for error highlighting (setting asi as true to suppress missing semicolons is one such case.)
Later, i saw that js2-mode has inbuilt support for error highlighting. So, what set of rules js2-mode and is it as customizable as flycheck-jshint?
js2-mode does not use jshint, it will do the syntax check in elisp.
The default checker for js2-mode is jshint.
You don't have to use a lambda function to enable flycheck-mode.
(add-hook 'js2-mode-hook 'flycheck-mode)
(setq flycheck-jshintrc "~/.emacs.d/.jshintrc")
or add your own path to the .jshintrc file.
Later edit:
To verify your flycheck setup for a specific buffer, C-c ! v or M-x flycheck-verify-setup.