How to use 'jshint es6' in JavaScript

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function execJshint( fileName, options ){
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  var source = fs.readFileSync(fileName,'utf8');
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  var shortFileName = fileName.replace(path.join(modulePath, 'dist', '_'), '');
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  var options = options || {
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    globalstrict: true,
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    globals: {
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      "require": false,
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      "module": false,
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      "console": false,
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      "__dirname": false,
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      "process": false,
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      "exports": false
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    }
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  }
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  //console.log(options)
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  JSHINT(source, options);
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  var data = JSHINT.data();
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  //console.log(data)
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  if( data.errors && data.errors.length ){
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    hasErr = true;
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    $.util.log($.util.colors.cyan('file: ' + shortFileName));
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  }
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  data.errors && data.errors.forEach(function( message, index ){
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      $.util.log($.util.colors.yellow( 'line: '+(index+1) ));
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      $.util.log($.util.colors.yellow('>>'), 'line: ' + message.line + ', column: ' + message.character);
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      $.util.log($.util.colors.yellow('>>'), 'msg: ' + message.reason);
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  })
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  //console.log(JSHINT.data());
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}

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jshint: function jshint(output) {
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    output.JSHint = {
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        // Prohibit explicitly undefined variables
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        undef: true,
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        // No empty code blocks
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        noempty: true,
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        // Prohibits the use of ++ and --
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        plusplus: true,
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        // Prohibits the use of arguments.callee and caller
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        noarg: true,
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        // Prohibit the use of variables before they were defined
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        latedef: true,
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        // Requires the use of === instead of ==
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        eqeqeq: true,
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        // Requires you to specify curly braces on loops
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        // and conditionals
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        curly: true,
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        // Allow variable shadowing. Declaring a var multiple times
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        // is allowed.
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        shadow: true,
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        // Allow mixing spaces and tabs. We can add a prettify one day
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        // if we want to fix things up.
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        smarttabs: true
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    };
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},