IT/Software career thread: Invert binary trees for dollars.
- Thread starter Traak
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Nice usage for lambdas is optional callable parameter to a function. You've got a dictionary full of stats while your program runs. Some stats, as new numbers are recorded, you'd like to keep the biggest one:
self.add_stats(key, value, lambda x, y: max(x, y))
Or, you want to simply add the new numbers to existing stats:
self.add_stats(key, value, lambda x, y: x + y)
And in def add_stats(), you'll have code that handles that callable if it exists. X being the existing stat, and Y being the new value being passed in. Sure, you can do this with an array of flags, but lambdas allow for much great flexibility with much less code. Downside is that lambdas are somewhat expensive since you're creating a new function every time add_stats() is called. But, hey, it's python, not exactly known for performance.
self.add_stats(key, value, lambda x, y: max(x, y))
Or, you want to simply add the new numbers to existing stats:
self.add_stats(key, value, lambda x, y: x + y)
And in def add_stats(), you'll have code that handles that callable if it exists. X being the existing stat, and Y being the new value being passed in. Sure, you can do this with an array of flags, but lambdas allow for much great flexibility with much less code. Downside is that lambdas are somewhat expensive since you're creating a new function every time add_stats() is called. But, hey, it's python, not exactly known for performance.
chaos
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Yeah I do scripting but it seems like the difference between a script and a program, these days, it just scale. Apparently you can even write a gui in python, which I had no idea until a few weeks ago.
It's a strange thing, because I want to know it, and I need to know it. But I don't need to know it to that level so I'm kind of uncertain about how far to take it before that's done and I can focus on some other shit. Course I'm taking wants me to learn some assembly and C as well, same problem there.
It's a strange thing, because I want to know it, and I need to know it. But I don't need to know it to that level so I'm kind of uncertain about how far to take it before that's done and I can focus on some other shit. Course I'm taking wants me to learn some assembly and C as well, same problem there.
The game EVE Online was written in python. Not sure if they have ever migrated off it.
Cad
scientia potentia est
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Noodleface
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Just because you can doesn't mean you should. I think some of the performance problems in Civ5's late game was also caused by Python. There's still a limit as what you should do with a scripting language, just that limit is defined by the hardware and how fast you want your application to be.
Noodleface
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chaos
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I've already read a couple of short primers on it. like reading fucking hieroglyphics
Cad
scientia potentia est
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It's similar to any other type of programming really just everything is super inconvenient and difficult.
Mist
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tyen
EQ in a browser wait time: ____
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Just out of curiousity, given your position what would have been your language of choice if you had the luxury to go by only your comfort & previous experience?Sounds like I'm going to have to learn C++
Noodleface
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Well sort of.. You have to break away from the typical thinking of 'I'll toss a for loop here, and if statement here' . You have to manually write that stuff.
Granted i did it at a way lower level than most people would so perhaps my view is skewed. In school we had some boards that ran old Motorola assembly and it was fun but incredibly taxing on my brain.
Im very fast at reading and understanding assembly now but if you asked me to write anything it would take me forever.
At the new place I'm mainly doing C++, Java, and Matlab for signal processing and its a nice break from the Super low level stuff
tyen
aren't you from Portland? Not surprising you'd like hipster Central. I might not have minded it if my commute wasn't 2 and a half hours one way everyday.
alavaz
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Assembly (in my limited experience) is quite a bit different than higher level programming. The instructions are very rudimentary and you have to actually be concerned about memory location and register placement and very low level things. It seems to me that it would take millions of lines of code to do relatively basic stuff, but as I said my experience is limited.
Noodleface
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No you're spot on. And not only memory locations but also very careful with the stack and some other things