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What is difference between functional and imperative programming languages?
...acteristics bring a number of benefits, including the following:
Increased readability and maintainability. This is because each function is designed to accomplish a specific task given its arguments. The function does not rely on any external state.
Easier reiterative development. Because the code...
How do I measure time elapsed in Java? [duplicate]
.... However this TSC may not be the same between cores/processors. If your thread is rescheduled to a different core partway through, you will end up with a start timestamp from core 1 and a end timestamp from core 2 but they might not be the same time (you can even get negative values) - some example...
What is a Y-combinator? [closed]
...
If you're ready for a long read, Mike Vanier has a great explanation. Long story short, it allows you to implement recursion in a language that doesn't necessarily support it natively.
...
Match multiline text using regular expression
...ny character that is either whitespace or non-whitespace"), . is easier to read, but you need to look for the (?s) or DOTALL modifier in order to find out whether newlines are included or not. I'd prefer . with the Pattern.DOTALL flag set (this is easier to read and remember than (?s) in my opinion....
Is there a performance difference between i++ and ++i in C++?
...es t get updated if you're incrementing this. Weren't the values of this already copied into t?
– rasen58
Nov 11 '17 at 3:37
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INNER JOIN ON vs WHERE clause
...JOIN is ANSI syntax which you should use.
It is generally considered more readable, especially when you join lots of tables.
It can also be easily replaced with an OUTER JOIN whenever a need arises.
The WHERE syntax is more relational model oriented.
A result of two tables JOINed is a cartesian ...
Difference between objectForKey and valueForKey?
...e] timeIntervalSinceDate:start];
vtotal+=elapsed;
NSLog (@"reading %lu values off dictionary via valueForKey took: %10.4f seconds", keys.count, elapsed);
start = [NSDate date];
for (NSString *key in keys) {
id obj = [dict objectForKey:key];
}
...
Websocket API to replace REST API?
...me at them. I don't have any yet, but hope to soon.
Below is a list of to-read-later links that I've been collecting. I can't vouch that they are all worthwhile, as I've only skimmed many of them. But hopefully some will help.
Great tutorial on using Socket.IO with Express. It exposes express se...
What's the difference between passing by reference vs. passing by value?
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@YungGun "too long, didn't read". A glance shows exactly the confusions outlined in the answer. Pass by reference is an abstract technique agnostic to implementation. It doesn't matter what exactly is passed under the hood, it matters what the effect o...
How to sign an android apk file
...xport Wizard and your application will be compiled,
signed, aligned, and ready for
distribution.
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