Name: js-handler/node_modules/restify/node_modules/verror/examples/werror.js 
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var mod_fs = require('fs');
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var mod_verror = require('../lib/verror');
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var filename = '/nonexistent';
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mod_fs.stat(filename, function (err1) {
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  var err2 = new mod_verror.WError(err1, 'failed to stat "%s"', filename);
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  /* The following would normally be higher up the stack. */
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  var err3 = new mod_verror.WError(err2, 'failed to handle request');
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  console.log(err3.message);
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  console.log(err3.toString());
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  console.log(err3.stack);
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});