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Do I need to disable NSLog before release Application?
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12 Answers
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Importing a CSV file into a sqlite3 database table using Python
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15 Answers
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How to create a MySQL hierarchical recursive query
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Android Studio: Module won't show up in “Edit Configuration”
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145
Make sure your build.gradle is
apply plugin: 'com.android.application'
not
apply plu...
How to redirect and append both stdout and stderr to a file with Bash?
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cmd >>file.txt 2>&1
Bash executes the redirects from left to right as follows:
>>file.txt: Open file.txt in append mode and redirect stdout there.
2>&1: Redirect stderr to "where stdout is currently going". In this case, that ...
How to force push a reset to remote repository?
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10 Answers
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Create an enum with string values
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enum E {
hello = "hello",
world = "world"
};
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TypeScript 1.8
Since TypeScript 1.8 you can use string literal types to provide a reliable and safe experience for named string values (which is partially what enums are used for).
type Options = "hello" | "world";
var foo: Options;
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Python extract pattern matches
Python 2.7.1
I am trying to use python regular expression to extract words inside of a pattern
9 Answers
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How do I obtain the frequencies of each value in an FFT?
...al terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz and your FFT size, N is 1024, then the FFT output bins are at:
0: 0 * 44100 / 1024 = 0.0 Hz
1: 1 * 44100 / 1024 = 43.1 Hz
2: 2 * 44100 / 1024 = 86.1 Hz
3: 3 * 44100 / 1024 = 129.2 Hz
4: .....
UnicodeDecodeError when reading CSV file in Pandas with Python
...s in different formats. I mostly use read_csv('file', encoding = "ISO-8859-1"), or alternatively encoding = "utf-8" for reading, and generally utf-8 for to_csv.
You can also use one of several alias options like 'latin' instead of 'ISO-8859-1' (see python docs, also for numerous other encodings you...