Really good podcast in the Entrepreneurial Thought Leaders series from Stanford here:
http://ecorner.stanford.edu/authorMaterialInfo.html?mid=2334
It's David Heineimeier Hansson of 37 signals and Ruby on Rails fame, always good for an opinion and I think part of a company a lot of people would like to imitate one day, as in the best kind of flattery type of imitation.
Top bits for me:
Don't try to compete with Microsoft etc. on programming effort, marketting spend etc, they'll crush you. Especially on the marketting front this carrys some weight with me, I think some small companies try to imitat the big boys in this arena too much and don't make enough of what they have the big boys don't.
Don't take VC finding unless you actually need to build a factory in India or something. Having sat in a meeting to discuss how we'd spend a million dollars if we got it I know some companies are attracted to the VC capital without neccesarily thinking through what it is they actually need it for. Also, the risk of wasting your time on something which isn't going to be profitable is increased, fail fast and fail often as they say.
All his stuff about building a scalable company, not as in one which can scale to tonnes of employees, but one which scales the cash coming in without scaling up the employee numbers. Very nice idea to try and focus on, keeping this in mind is I guess how you keep a lean startup lean as it ages and evolves.
Showing posts with label None. Show all posts
Showing posts with label None. Show all posts
Wednesday, 10 February 2010
Saturday, 6 February 2010
Exceptional? No.
Spotted this the other day whilst making a small change to the code at work. It was strange, something felt very wrong but I couldn't quite put it into words. I see this sort of stuff occasionally that just feels wrong but I can't always say exactly what it is. As luck would have it a coworker wandered in at that moment so we looked at it together, he declared if he;d written code like that he should be shot. Here it is. It's an accessor method on a class representing a row in a db table.
It was the use of a NPE to catch an empty value, if the default was meant to be false, make it false by default surely and assume it won't be null in this method. Also, where did the NPE come from, obviously some lazy dev assumed it was due to a null value on that column, and not as was possible from some place else in the getValue() call which was entirely possible. If it was you'd be silently failing at something else and detecting the failure would be far less likely.
Exceptions should indicate something exceptional happened not something predicatable and expected. Special bonus points awarded this time as Mr Cowrker joining me in looking at this turned out after some cvs detective work to be responsible. Some time ago admitedly so we decided he'd not leave the company with his head hung low. He did also point out that paying the company back for the 2 years emplyment after creating the sinful code and rolling back all his commits for the last 2 years would be pretty hard work as well.
public boolean getColumnBlah() {
try {
return columnBlah.getValue();
} catch (NullPointerException ex) {
return false;
}
}
It was the use of a NPE to catch an empty value, if the default was meant to be false, make it false by default surely and assume it won't be null in this method. Also, where did the NPE come from, obviously some lazy dev assumed it was due to a null value on that column, and not as was possible from some place else in the getValue() call which was entirely possible. If it was you'd be silently failing at something else and detecting the failure would be far less likely.
Exceptions should indicate something exceptional happened not something predicatable and expected. Special bonus points awarded this time as Mr Cowrker joining me in looking at this turned out after some cvs detective work to be responsible. Some time ago admitedly so we decided he'd not leave the company with his head hung low. He did also point out that paying the company back for the 2 years emplyment after creating the sinful code and rolling back all his commits for the last 2 years would be pretty hard work as well.
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