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How to remove all rows in a numpy.ndarray that contain non-numeric values
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>>> a = np.array([[1,2,3], [4,5,np.nan], [7,8,9]])
array([[ 1., 2., 3.],
[ ...
How do I make a textbox that only accepts numbers?
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Determining type of an object in ruby
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626
The proper way to determine the "type" of an object, which is a wobbly term in the Ruby world, ...
How to count duplicate value in an array in javascript
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28 Answers
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What are the rules for JavaScript's automatic semicolon insertion (ASI)?
...us token by at least one LineTerminator.
The token is }
e.g.:
{ 1
2 } 3
is transformed to
{ 1
;2 ;} 3;
The NumericLiteral 1 meets the first condition, the following token is a line terminator.
The 2 meets the second condition, the following token is }.
When the end of the input s...
How does one make a Zip bomb?
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92
Citing from the Wikipedia page:
One example of a Zip bomb is the file
45.1.zip which was 4...
How to define a preprocessor symbol in Xcode
...eld.
Per Steph's comments, the full syntax is:
constant_1=VALUE constant_2=VALUE
Note that you don't need the '='s if you just want to #define a symbol, rather than giving it a value (for #ifdef statements)
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mongodb, replicates and error: { “$err” : “not master and slaveOk=false”, “code” : 13435 }
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287
You have to set "slave okay" mode to let the mongo shell know that you're allowing reads from ...
Increment a database field by 1
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Updating an entry:
A simple increment should do the trick.
UPDATE mytable
SET logins = lo...