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Play audio with Python
... with:
pip install sounddevice --user
It can play back sound from NumPy arrays, but it can also use plain Python buffers (if NumPy is not available).
To play back a NumPy array, that's all you need (assuming that the audio data has a sampling frequency of 44100 Hz):
import sounddevice as sd
sd....
Add leading zeroes to number in Java? [duplicate]
...digits > 0 : "Invalid number of digits";
// create variable length array of zeros
char[] zeros = new char[digits];
Arrays.fill(zeros, '0');
// format number as String
DecimalFormat df = new DecimalFormat(String.valueOf(zeros));
return df.format(num);
}
...
ActiveRecord OR query
...
If you want to use an OR operator on one column's value, you can pass an array to .where and ActiveRecord will use IN(value,other_value):
Model.where(:column => ["value", "other_value"]
outputs:
SELECT `table_name`.* FROM `table_name` WHERE `table_name`.`column` IN ('value', 'other_value')
...
JavaScript - Getting HTML form values
.../form-serialize/)
serialize(document.forms[0]);
jQuery
$("form").serializeArray()
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sudo echo “something” >> /etc/privilegedFile doesn't work
...in/ipfw</string>
<key>ProgramArguments</key>
<array>
<string>/sbin/ipfw</string>
<string>-q</string>
<string>/etc/ipfw.conf</string>
</array>
<key>RunAtLoad</key>
<true></true...
How to concatenate two strings in C++?
...
If you were programming in C, then assuming name really is a fixed-length array like you say, you have to do something like the following:
char filename[sizeof(name) + 4];
strcpy (filename, name) ;
strcat (filename, ".txt") ;
FILE* fp = fopen (filename,...
You see now why everybody recommends st...
Literal notation for Dictionary in C#?
...ogrammed in C#. In JavaScript, I can pass data easily using an associative array:
4 Answers
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Any way to replace characters on Swift String?
...paration characters, you can use components() to break the string into and array, and then you can use the join() function to put them back to together with a specified separator.
let toArray = aString.components(separatedBy: " ")
let backToString = toArray.joined(separator: "+")
Or if you're loo...
Can enums be subclassed to add new elements?
...ace is used by the Java 1.7 API, e.g. java.nio.file.Files.write() takes an array of OpenOption as the last argument. OpenOption is an interface, but when we call this function we usually pass a StandardOpenOption enum constant, which is derived from OpenOption. This has the advantage of being extens...
Test if a vector contains a given element
...ly preferable sometimes for it gives you all the matching positions (as an array), unlike match. Although this was perhaps not what the OP asked for, unlike stackoverflow.com/questions/1169388/…
– SX welcomes ageist gossip
Feb 7 '15 at 16:27
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