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node.jspromisebluebird

Bluebird throwing exception at source code

I am using bluebirdjs for nodejs application. It throws an exception from its source code.

Line : try {throw new Error(); } catch (e) {ret.lastLineError = e;}

Path : bluebird/js/release/util.js

Line : 374

This exception seems unnecessary to me. It only throws exception. Is it rational to delete this line?

Same code also exists inside async.js at line 3.

Solution

  • In IE an Error object will not have a .stack property unless it goes a through try catch. The .stack property is needed to see which line and file the code is in.

    ret.lastLineError = new Error() would therefore only work in firefox and chrome