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PHP method chaining?
...eatured in the object-oriented approach, called 'method chaining'. What is it exactly? How do I implement it?
10 Answers
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What are the differences between “=” and “
...ons in a braced list of expressions.
Let’s not put too fine a point on it: the R documentation is (subtly) wrong [1]. This is easy to show: we just need to find a counter-example of the = operator that isn’t (a) at the top level, nor (b) a subexpression in a braced list of expressions (i.e. {...
':app:lintVitalRelease' error when generating signed apk
...and encountered an error message: "You uploaded a debuggable APK. For security reasons you need to disable debugging before it can be published in Google Play. Learn more about debuggable APKs."
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How to find the largest file in a directory and its subdirectories?
...forming various commands on a directory that has a number of folders under it as well.
15 Answers
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Read file data without saving it in Flask
I am writing my first flask application. I am dealing with file uploads, and basically what I want is to read the data/content of the uploaded file without saving it and then print it on the resulting page. Yes, I am assuming that the user uploads a text file always.
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Match whitespace but not newlines
I sometimes want to match whitespace but not newline.
6 Answers
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Need to understand the usage of SemaphoreSlim
...won't be more than 10 workers doing this work at the same time.
Calling WaitAsync on the semaphore produces a task that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having an asynch...
wait() or sleep() function in jquery?
I want to add a class, wait 2 seconds and add another class.
8 Answers
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Difference between JOIN and INNER JOIN
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They are functionally equivalent, but INNER JOIN can be a bit clearer to read, especially if the query has other join types (i.e. LEFT or RIGHT or CROSS) included in it.
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Is it possible to GROUP BY multiple columns using MySQL?
Is it possible to GROUP BY more than one column in a MySQL SELECT query? For example:
7 Answers
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