66 This answer is to iterate over selected columns as well as all columns in a DF. df.columns gives a list containing all the columns' names in the DF. Now that isn't very helpful if you want …

This question has been out here a long time, but I wanted to contribute how I usually iterate through a JSON object. In the example below, I've shown a hard-coded string that contains …

How to iterate (keys, values) in JavaScript? [duplicate] Asked 9 years, 5 months ago Modified 3 years, 9 months ago Viewed 1.2m times

Oct 3, 2012 · Iterate through a C++ Vector using a 'for' loop Asked 12 years, 9 months ago Modified 1 year, 5 months ago Viewed 1.2m times

Jul 1, 2009 · 876 Extracted from the reference How to Iterate Over a Map in Java: There are several ways of iterating over a Map in Java. Let's go over the most common methods and …

Apr 30, 2012 · I need to iterate through all .asm files inside a given directory and do some actions on them. How can this be done in a efficient way?

See this answer for a comprehensive ways to iterate over a dataframe. The most performant way is probably itertuples(). Following is an example where a nested dictionary is created using a …

Jan 17, 2013 · Javascript Maps keep keys in insertion order, meaning you can iterate over them without having to check the hasOwnProperty, which was always really a hack. Iterate over a map:

Jul 21, 2010 · When you iterate through dictionaries using the for .. in .. -syntax, it always iterates over the keys (the values are accessible using dictionary[key]). To iterate over key-value pairs, …

To iterate in reverse with an index (if that's what you want, and the criteria you are using to say it's better) then use range with reversed as stated in this answer; it's far simpler.