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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
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101
I'm not AMD or speaking for them, but I would have done it the same way. Because zeroing the h...
Once upon a time, when > was faster than < … Wait, what?
...range of [0, 0.5]. Next frame, you render with GL_GREATER with a range of [1.0, 0.5]. You go back and forth, literally "flipping the sign of Z and the depth test" every frame.
This loses one bit of depth precision, but you didn't have to clear the depth buffer, which once upon a time was a rather s...
How can I respond to the width of an auto-sized DOM element in React?
...; {
if (!offsetWidth) return null;
const numColumns = Math.max(1, Math.floor(offsetWidth / 200));
return renderColumns(numColumns);
}}
</Responsive>
);
share
|
improve...
Why were pandas merges in python faster than data.table merges in R in 2012?
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120
It looks like Wes may have discovered a known issue in data.table when the number of unique st...
Add column with constant value to pandas dataframe [duplicate]
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21
The reason this puts NaN into a column is because df.index and the Index of your right-hand-side...
Compare if BigDecimal is greater than zero
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416
It's as simple as:
if (value.compareTo(BigDecimal.ZERO) > 0)
The documentation for compar...
How to open a file using the open with statement
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317
Python allows putting multiple open() statements in a single with. You comma-separate them. ...
How to use split?
...ar substr = str.split(' -- ');
// substr[0] contains "something"
// substr[1] contains "something_else"
If this value is in some field you could also do:
tRow.append($('<td>').text($('[id$=txtEntry2]').val().split(' -- ')[0])));
...
Disable Rails SQL logging in console
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321
To turn it off:
old_logger = ActiveRecord::Base.logger
ActiveRecord::Base.logger = nil
To tur...