Viewing profile — danprager

I put it down to a limitation of the Aussie (and other) stock exchanges. The shares had dropped to $0.01, when their true value was negative, given the stapled obligations that the…

Good, but overly long article. I have reached the similar conclusions in favor of functional tests over the last decade or so. Personally, I have worked seriously used DBC , TDD, a…

Kent Beck's book: Test-Driven Development Don't just read it: Work your way through it. You need to follow the recipe to develop the discipline/knack. Fairly quick and reasonably e…

Side-track: The Romans used IIII for 4, not IV, etc. which was introduced by early printers (not dot-matrixes ;-) to save space, so the original system was more additive. Looked at…

They do work; they just don't integrate with the built-in types: Why should they? Try instead: car(cons(1,2)) -> 1 cdr(cons(1,2)) -> 2 car(cons('a', cons(2, 3))) -> 'a'

Well right now you are using an application -- Hacker News -- that is written in pg's Arc language which runs as an interpreter on MzScheme which is part of PLT Scheme. Why don't m…

In the spirit of FSJ, intended in part to satirize Australian governmental attempts to increase internet censorship. Some of the tweets: "Apparently LOL means 'Laugh Out Loud' and …

There have been a few attempts to methodologize a more "consultative approach" to Sales, notably SPIN Selling, Strategic Selling and Solution Selling. The last of these has been th…

An app store gives somewhere for vendors to hang up their shingle (like a mall), and -- depending on the barriers to entry -- gives some assurance to "shoppers" looking for apps. W…

Other than Salesforce.com's AppExchange, are any business-oriented software marketplaces for add-ons getting traction? I've looked into WebEx Connect Marketplace (vaporware?) and G…

For our first web-based product we (Austhink software) decided to go straight for integration with the web-based Salesforce CRM, and put it up on Salesfore.com's AppExchange market…

Yes, these idioms would work in Javascript too. I guess the point is that people are starting to discover that languages like Python and JS support these functional idioms quite ni…

We've looked at them. There service is pretty slick, and well-backed, but you need to pay a significant monthly fee (with 12 month lock-in) to get started, so you would want to hav…

Yes, in that case the inner function has access to the arguments of the outer function. But you can go deeper -- e.g. declaring an inner function inside code inside the out er func…

Yes, "named let" is lovely, but perhaps less obvious for the non-cognoscenti. It also doesn't translate into Python, etc.

Learning Scheme helped my Python by teaching me some new (to me) idioms, besides the first-class function stuff. For example, it is natural in Scheme to declare a lot of local info…

"A big barrier to entry for Scheme is getting a nice environment set up" Dunno: DrScheme is very nice out-of-the-box.

Another possible collapse would be to say "I have two children, and the oldest [or youngest] is a girl". That would disambiguate GB & BG, by effectively stating I have G? [or ?G]. …

I too enjoy reading. I commute and read books on the train. I also read a bit before going to bed and otherwise opportunistically. I read multiple books at once, and this can be a …

Propose away! Here's another: How many hits in the top 10 do you get? I get 5.

Most languages short-circuit ands and ors already, but adding additional short-circuiting demands macros: My practical example of this is my desire for a short-circuit "implies" op…