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var api_friends_helper = require('./helper.js'); try{ api_friends_helper.do_stuff(function(result){ console.log('success'); }; }catch(err){ console.log('caught error'); //this doesn't hit! } And inside do_stuff , I have: function do_stuff(){ //If I put the throw here, it will catch it! insert_data('abc',function(){ throw new Error('haha'); }); } How come it never logs 'caught error'? Instead, it prints the stack-trace and the error object to screen: { stack: [Getter/Setter], arguments: undefined, type: undefined, message: 'haha' } Error: haha at /home/abc/kj/src/api/friends/helper.js:18:23 at /home/abc/kj/src/api/friends/db.js:44:13 at Query.<anonymous> (/home/abc/kj/src/node_modules/mysql/lib/client.js:108:11) at Query.emit (events.js:61:17) at Query._handlePacket (/home/abc/kj/src/node_modules/mysql/lib/query.js:51:14) at Client._handlePacket (/home/abc/kj/src/node_modules/mysql/lib/client.js:312:14) at Parser.<anonymous> (native) at Parser.emit (events.js:64:17) at /home/abc/kj/src/node_modules/mysql/lib/parser.js:71:14 at Parser.write (/home/abc/kj/src/node_modules/mysql/lib/parser.js:576:7) Notice that if I put the throw RIGHT AFTER the do_stuff(), then it will catch it. How can I make it catch, even if I put it nested inside another function?

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