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How to initialize an array's length in JavaScript?
...arrays can be more efficient if the array is filled afterwards, but the performance gain (if any) seem to differ from browser to browser.
jsLint does not like new Array() because the constructer is ambiguous.
new Array(4);
creates an empty array of length 4. But
new Array('4');
creates an arra...
How to smooth a curve in the right way?
...ke your example), then a FFT is the right way to go. Take the fourier transform and subtract out the low-contributing frequencies:
import numpy as np
import scipy.fftpack
N = 100
x = np.linspace(0,2*np.pi,N)
y = np.sin(x) + np.random.random(N) * 0.2
w = scipy.fftpack.rfft(y)
f = scipy.fftpack.rff...
What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
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There is absolutely no difference in performance. Final version prepared by SQL Server would be the same in both the cases.
– Sateesh Pagolu
Feb 27 '15 at 0:31
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how to hide a vertical scroll bar when not needed
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Not the answer you're looking for? Browse other questions tagged html css forms or ask your own question.
How to store a list in a column of a database table
...ned SQL developers.
The principle you're violating is called first normal form, which is the first step in database normalization.
At the risk of oversimplifying things, database normalization is the process of defining your database based upon what the data is, so that you can write sensible, con...
When do I use the PHP constant “PHP_EOL”?
...s, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
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How to complete a git clone for a big project on an unstable connection?
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Thanks for the information, so my problem is known and a solution is worked on... What would you recommend as a work-around?
– LaPingvino
Oct 17 '10 at 19:31
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datatrigger on enum to change image
...y">
2 - in the Value property of the DataTrigger, use the {x:Static} form:
<DataTrigger Binding="{Binding Path=LapCounterPingStatus}" Value="{x:Static my:PingStatus.PING_UNKNOWN}">
Notice that the Enum type must be prefixed with the xmlns prefix you defined above.
Edit:
If your Enu...
How to change the button text of ?
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Use Bootstrap FileStyle, which is used to style the file fields of forms. It is a plugin for a jQuery-based component library called Twitter Bootstrap
Sample usage:
Include:
<script type="text/javascript" src="js/bootstrap-filestyle.min.js"> </script>
Via JavaScript:
$(":fi...
What is the MySQL VARCHAR max size?
...s are NOT able to be stored in memory tables, so there is a significant performance penalty for using them when a VARCHAR would suffice.
– Camden S.
Jan 28 '14 at 1:01
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