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No ConcurrentList in .Net 4.0?
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I gave it a try a while back (also: on GitHub). My implementation had some problems, which I won't get into here. Let me tell you, more importantly, what I learned.
Firstly, there's no way you're going to get a full implementation of IList<T> that is lockless and thread-safe. In parti...
Bootstrap with jQuery Validation Plugin
I am trying to add validation to my form with jQuery Validation Plugin, but I'm having a problem where the plugin puts the error messages when I'm using input groups.
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jQuery Click fires twice when clicking on label
I am using jQuery to create custom radio buttons and i have a problem.
When clicking on the label that associated with the radio the click events fires twice, if i click only on the radio itself it's working fine (well actually it's not the radio i am clicking but the div that wraps the whole input ...
How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
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chbrownchbrown
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insert a NOT NULL column to an existing table
...and finally ALTER column to set NOT NULL constraint:
ALTER TABLE MY_TABLE ADD STAGE INT NULL
GO
UPDATE MY_TABLE SET <a valid not null values for your column>
GO
ALTER TABLE MY_TABLE ALTER COLUMN STAGE INT NOT NULL
GO
Another option is to specify correct default value for your column:
ALTER...
mysql Foreign key constraint is incorrectly formed error
...ALLINT(5) UNSIGNED and the referenced column was INT(10) UNSIGNED. Once I made them both the same exact type, the foreign key creation worked perfectly.
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Adding a legend to PyPlot in Matplotlib in the simplest manner possible
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Add a label= to each of your plot() calls, and then call legend(loc='upper left').
Consider this sample (tested with Python 3.8.0):
import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 20, 1000)
y1 = np.si...
ORA-01882: timezone region not found
...k the version of the Oracle jdbc driver and Oracle database. Just today I had this issue when using ojdbc6.jar (version 11.2.0.3.0) to connect to an Oracle 9.2.0.4.0 server. Replacing it with ojdbc6.jar version 11.1.0.7.0 solved the issue.
I also managed to make ojdbc6.jar version 11.2.0.3.0 connec...
What's the difference between `on` and `live` or `bind`?
In jQuery v1.7 a new method, on was added. From the documentation:
7 Answers
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failed to serialize the response in Web API
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ZaneZane
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