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How do I create an average from a Ruby array?
How would get find an average from an array?
20 Answers
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How do search engines deal with AngularJS applications?
... AJAX in content as the PushState updates the URL.
Crawlers harvest links from a page then add them to a queue for later processing. This means that for a crawler, every hit on the server is a direct hit, they don't navigate via Pushstate.
Precomposition bundles the initial payload into the first ...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
...mns to a dataframe df with n columns (n > 0).
These new columns result from the application of a function to one of the columns in the dataframe.
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What is a deadlock?
... explain a real world (not actually real) example for a deadlock situation from the crime movies. Imagine a criminal holds an hostage and against that, a cop also holds an hostage who is a friend of the criminal. In this case, criminal is not going to let the hostage go if cop won't let his friend t...
Can constructors throw exceptions in Java?
...rtially initialized and if non-final, subject to attack.
The following is from the Secure Coding Guidelines 2.0.
Partially initialized instances of a non-final class can be accessed via a finalizer attack. The attacker overrides the protected finalize method in a subclass, and attempts to creat...
Import CSV to mysql table
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Instead of writing a script to pull in information from a CSV file, you can link MYSQL directly to it and upload the information using the following SQL syntax.
To import an Excel file into MySQL, first export it as a CSV file. Remove the CSV headers from the generated CSV f...
How to Create Deterministic Guids
...gles the mind that they don't update the RFC in-place with the corrections from the errata. Even a link at the end of the document would be vastly more helpful than relying on the reader to remember to search for errata (hopefully before writing an implementation based on the RFC...).
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How to read a text file into a list or an array with Python
...o add that, the above problem notwistanding, this procedure collapses data from individual rows in a single mega-list, usually not what I want when processing a record-oriented data file.
– gboffi
Jan 24 '17 at 18:52
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How to find the 'sizeof' (a pointer pointing to an array)?
...peek at the stashed value. Just remember to free the whole block starting from the beginning, and not just the array.
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calling non-static method in static method in Java [duplicate]
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The only way to call a non-static method from a static method is to have an instance of the class containing the non-static method. By definition, a non-static method is one that is called ON an instance of some class, whereas a static method belongs to the class i...