I already have a working solution, but I would really like to know why this doesn't work: ratings = Model.select(:rating).uniq ratings.each { |r| puts r.rating
I want to post data to the url and getting Null pointer exception My JSON URL contains { "Details": [ { "Status":"NO UPDATES" }
I'm loading a large pandas DataFrame into a DynamoDB table with the boto3 batch_writer context. The hash key is symbol and the sort key is date. with table.batc
currently i'm trying out some algorithms. The Bubblesort with swapping the data works fine, but when i try to use the swap adress function the program ends with
I've UIView in my storyboard, its like a pop up, everytime user clicks UIButton my UIView pops up, I have a logical question, does UIView drain CPU even though
I'm trying to learn Kotlin for Android from a slightly outdated book. After a certain step, my app crashes on startup with no errors and no LOGCAT. Tested on em
I want to plot characteristics of areas on a map, but with very uneven population density, the larger tiles misleadingly attract attention. Think of averages (o
When I'm trying to get the length of a json object I'm getting the following error:size = len(response_info[weapon]['traitIds']) KeyError: 'traitIds' I get no e
As we can split an array from a Regex, I try to understand this: console.log( 'hello'.split(/([a-z])/g) ); // returns ['', 'h', '', 'e', '', '