How about keeping a counter and resetting it to zero when you reach the wanted number? Adding and checking equality is faster than modulo. printcounter = 0 # Whatever a while loop is in Python while (…): … if (printcounter == 1000000): print(‘Progress report…’) printcounter = 0 … printcounter += 1 Although it’s quite possible … Read more
The question is a bit vague, but answering the title, you can get both keys and values at the same time like this: >>> d = {‘a’:5, ‘b’:6, ‘c’: 3} >>> d2 = {‘a’:6, ‘b’:7, ‘c’: 3} >>> for (k,v), (k2,v2) in zip(d.items(), d2.items()): print k, v print k2, v2 a 5 a 6 c … Read more
PS: I wonder why Play Iteratees library has not been choosed by Martin Odersky for his course since Play is in the Typesafe stack. Does it mean Martin prefers RxScala over Play Iteratees? I’ll answer this. The decision of which streaming API’s to push/teach is not one that has been made just by Martin, but … Read more
You can use the += operator to append to an array. args=() for i in “$@”; do args+=(“$i”) done echo “${args[@]}” This shows how appending can be done, but the easiest way to get your desired results is: echo “$@” or args=(“$@”) echo “${args[@]}” If you want to keep your existing method, you need to … Read more
The continue makes it jump to the evaluation at the botton so the program can evaluate if it has to continue with another iteration or exit. In this case it will exit. This is the specification: http://java.sun.com/docs/books/jls/third_edition/html/statements.html#6045 Such language questions you can search it in the Java Language Specification: http://java.sun.com/docs/books/jls/
The awk solution is what I would use, but if you want to understand your problems with bash, here is a revised version of your script. #!/bin/bash -vx ##config file with ip addresses like 10.10.10.1:80 file=config.txt while read line ; do ##this line is not correct, should strip :port and store to ip var ip=$( … Read more
Foreach can cause allocations, but at least in newer versions .NET and Mono, it doesn’t if you’re dealing with the concrete System.Collections.Generic types or arrays. Older versions of these compilers (such as the version of Mono used by Unity3D until 5.5) always generate allocations. The C# compiler uses duck typing to look for a GetEnumerator() … Read more
EDIT (removed wrong solution). EDIT (to add this other option): Another way to use it would be subclass QThread since it has protected *sleep methods. QThread::usleep(unsigned long microseconds); QThread::msleep(unsigned long milliseconds); QThread::sleep(unsigned long second); Here’s the code to create your own *sleep method. #include <QThread> class Sleeper : public QThread { public: static void usleep(unsigned … Read more
What you want to achieve is totally possible with Array#forEach — although in a different way you might think of it. You can not do a thing like this: var array = [‘some’, ‘array’, ‘containing’, ‘words’]; array.forEach(function (el) { console.log(el); wait(1000); // wait 1000 milliseconds }); console.log(‘Loop finished.’); … and get the output: some array … Read more