DataFrame.iterrows is a generator which yields both the index and row (as a Series): import pandas as pd df = pd.DataFrame({‘c1’: [10, 11, 12], ‘c2’: [100, 110, 120]}) df = df.reset_index() # make sure indexes pair with number of rows for index, row in df.iterrows(): print(row[‘c1’], row[‘c2’]) 10 100 11 110 12 120 Obligatory disclaimer … Read more
You can use a test if you are in last iteration:: #foreach( $item in $list ) $item.text #if( $foreach.hasNext ), #end #end
You can take Array.map(). This method returns an array with the elements from the callback returned. It expect that all elements return something. If not set, undefined will be returned. var students = [{ name: ‘Nick’, achievements: 158, points: 14730 }, { name: ‘Jordan’, achievements: ‘175’, points: ‘16375’ }, { name: ‘Ramon’, achievements: ’55’, points: … Read more
Resetting the value of your loop variable to the initial value then calling continue is as close as you’ll get. For example: for(var i=0; i<20; i++) { if(somecondition) { i=-1; continue; } }
These are the reasons I would choose one over the other: For-loop Syntax: for( int i = 0; i < 10; i++) { //Some code here } I would use a for loop for the reason that I may KNOW the NUMBER OF ITERATIONS I need to do and I have an INCREMENTING variable which … 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/
Can’t break forEach with Dart. You can use for and indexOf for (var number in id) { var index = id.indexOf(number); print(‘Origin forEach loop’); for (int i = 0; i < 1; i++) { print(“for loop”); } break; }
The idiomatic way to iterate over an array is: for _, armyName in ipairs(armies) do doStuffWithArmyName(armyName) end Note that: Use ipairs over pairs for arrays If the key isn’t what you are interested, use _ as placeholder. If, for some reason, that _ placeholder still concerns you, make your own iterator. Programming in Lua provides … Read more
Personally: for _ in range(50): print “Some thing” if you don’t need i. If you use Python < 3 and you want to repeat the loop a lot of times, use xrange as there is no need to generate the whole list beforehand.
You can simplify things a bit by putting command right in the test and doing increments a bit differently. Otherwise the script looks fine: NEXT_WAIT_TIME=0 until (( NEXT_WAIT_TIME == 5 )) || cmd; do sleep “$(( NEXT_WAIT_TIME++ ))” done (( NEXT_WAIT_TIME < 5 ))