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How to iterate over rows in a DataFrame in Pandas
I have a DataFrame from Pandas:
22 Answers
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Use JNI instead of JNA to call native code?
...m java to c. In this case jni will win in performance because you can keep and modify this buffer in c, without copying.
These are the problems I've encountered. Maybe there's more. But in general performance is not that different between jna and jni, so wherever you can use JNA, use it.
EDIT
Th...
Is asynchronous jdbc call possible?
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I don't understand how any of the proposed approaches that wrap JDBC calls in Actors, executors or anything else can help here - can someone clarify.
Surely the basic problem is that the JDBC operations block on socket IO. When it does thi...
Xml configuration versus Annotation based configuration [closed]
...efore anyways, so with XML, you would just need to change the XML mappings and it is fairly quick and painless to do so.
I haven't used JPA annotations, so I don't know how good they are, but I would argue that leaving the mapping of beans to the database in XML is also good, as the object shouldn'...
Difference between & and && in Java? [duplicate]
I was just wondering what the difference between & and && is?
A few days I wrote a condition for an if statement the looked something like:
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How can I override the OnBeforeUnload dialog and replace it with my own?
...dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in the dialog box, "Are you sure you want to navigate away from this page? ... Press OK to continue, or Cancel to stay on the current page.", c...
When do you use Git rebase instead of Git merge?
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Short Version
Merge takes all the changes in one branch and merges them into another branch in one commit.
Rebase says I want the point at which I branched to move to a new starting point
So when do you use either one?
Merge
Let's say you have created a branch for the purpose of...
Center a DIV horizontally and vertically [duplicate]
Is there a way to CENTER A DIV vertically and horizontally but, and that is important, that the content will not be cut when the window is smaller than the content The div must have a background color and a width and hight.
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Local file access with JavaScript
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If the user selects a file via <input type="file">, you can read and process that file using the File API.
Reading or writing arbitrary files is not allowed by design. It's a violation of the sandbox. From Wikipedia -> Javascript -> Security:
JavaScript and the DOM provide the
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What is Func, how and when is it used
What is Func<> and what is it used for?
7 Answers
7
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