node-jslint configuration for flymake

javascript.el

(require 'flymake)

(defun flymake-jslint-init ()
  (let* ((temp-file (flymake-init-create-temp-buffer-copy
		     'flymake-create-temp-inplace))
         (local-file (file-relative-name
		      temp-file
		      (file-name-directory buffer-file-name))))
    ;; Change it to path of the jslint.js executable file on your system
    (list "/Users/zuber/node_modules/jslint/bin/jslint.js" (list local-file))))

(setq flymake-allowed-file-name-masks
      (cons '(".+\\.js$"
	      flymake-jslint-init
	      flymake-simple-cleanup
	      flymake-get-real-file-name)
	    flymake-allowed-file-name-masks))

(add-hook 'js-mode-hook
	  (lambda ()
	    (flymake-mode 1)))

reporter.js

// Overwrite reporter.js file from node-jslint package with this one
/*jslint forin: true */

var log = console.log;

exports.report = function(file, lint) {
    var options = [], key, value,
        i, len, pad, e;

    for (key in lint.options) {
        value = lint.options[key];
        options.push(key + ": " + value);
    }
    // log("/*jslint " + options.join(", ") + " */");

    if (!lint.ok) {
        len = lint.errors.length;
        for (i=0; i<len; i++) {
            pad = String(i + 1);
            while (pad.length < 3) {
                pad = ' ' + pad;
            }
            e = lint.errors[i];
            if (e) {
                log(file + ':' + e.line + ':' + e.character + ': ' + e.reason);
            }
        }
    } else {
        log("No errors found.");
    }

    return lint.ok;
};