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Writing a Python list of lists to a csv file

...| edited Jun 26 '19 at 12:45 bucky 32422 silver badges1414 bronze badges answered Dec 26 '12 at 7:46 ...
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What is the difference between map and flatMap and a good use case for each?

... values from those that return a Some: val rdd = sc.parallelize(Seq(1,2,3,4)) def myfn(x: Int): Option[Int] = if (x <= 2) Some(x * 10) else None rdd.flatMap(myfn).collect res3: Array[Int] = Array(10,20) (noting here that an Option behaves rather like a list that has either one element, ...
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How do I ZIP a file in C#, using no 3rd-party APIs?

... | edited Mar 24 '11 at 13:03 adrianbanks 74.8k1919 gold badges162162 silver badges195195 bronze badges ...
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How to delete all the rows in a table using Eloquent?

...objects. You can make use of the truncate method, this works for Laravel 4 and 5: MyModel::truncate(); That drops all rows from the table without logging individual row deletions. share | impro...
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How do I remove a property from a JavaScript object?

... 46 Answers 46 Active ...
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How to convert a char to a String?

... 647 You can use Character.toString(char). Note that this method simply returns a call to String.val...
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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded

... 374 This can occur when Safari is in private mode browsing. While in private browsing, local storage...
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An error occurred while installing pg (0.17.1), and Bundler cannot continue

I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get: 16 Answers ...
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Named capturing groups in JavaScript regex?

... 141 ECMAScript 2018 introduces named capturing groups into JavaScript regexes. Example: const a...
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How to escape indicator characters (i.e. : or - ) in YAML

... 244 Quotes: "url: http://www.example-site.com/" To clarify, I meant “quote the value” and or...