WebStorm - Suppress unused param warning JavaScript

Question

Does anyone know how to suppress unused parameter warning in WebStorm? I tried jslint, but that does not work

/*jslint node: true, unparam: true*/
/*global __dirname: false */
"use strict";
var
  util = require('../util'),
  logger = util.getLogger(module.filename),
  ;

var UserHelper = module.exports = function () {
};

/**
 * Helper object for user facade 
 */
UserHelper.prototype = {
  doSomething : function(unusedParam) {
    //do something implementation
  }
};

Answer 1

You can modify WebStorm's builtin code inspections under File->Settings->Editor->Inspections. Then in Javascript->General area look for "Unused JavaScript / ActionScript global symbol".

That is likely the setting which is causing the "unused property" warning, though it might be one of the others. I am using 2016.1.3 and noticed a lot of my anonymous functions defined like this had the same buggy warning. Like most others I'd still recommend using jsHint itself above and beyond even just WebStorm's inspection.

Answer 2

For WebStorm with JSLint/JSHint disabled, you need to add this line before the line triggering the error:

//noinspection JSUnusedLocalSymbols

Answer 3

jshint instead of jslint works for me on WebStorm 8 and WebStorm 9 beta:

/*jshint node:true, unused:false */

Also, make sure you have JSHint (or JSLint) enabled in your preferences. JSHint has "Warn about unused variables". NOTE: This JSHint check does not distinguish between variables and function parameters unless JSHint is configured with unused:vars.

You can also uncheck the "Unused parameters" option under the JSLint configuration screen.

Relevant JSHint doc