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Simple state machine example in C#?
... readonly Action PressSwitch;
[Trigger]
public readonly Action GotError;
// Actual state machine logic
protected override IEnumerable WalkStates()
{
off:
Console.WriteLine("off.");
yield return null;
if (Trigge...
Enable binary mode while restoring a Database from an SQL dump
...ng to restore a Database from a dumpfile in MySQL, but I get the following error:
16 Answers
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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
...me records that the automations table referred to caused it to throw this "Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails".
– Ryan
Jan 25 '19 at 22:43
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Can you do a partial checkout with Subversion?
If I had 20 directories under trunk/ with lots of files in each and only needed 3 of those directories, would it be possible to do a Subversion checkout with only those 3 directories under trunk?
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Swift: #warning equivalent
...or most people, but anyone who uses the R.swift pod will run into the same error I had because R.swift is a directory
– Dan F
May 27 '16 at 14:12
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What are some better ways to avoid the do-while(0); hack in C++?
...es something that can be solved with RAII. Maybe I should have said "issue error" or some such instead.
– Mats Petersson
Aug 29 '13 at 10:15
25
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XAMPP - MySQL shutdown unexpectedly
When I open XAMPP and click start MySQL button and it gives me an error.
I had started it just before, but now it isn't working.
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Sound effects in JavaScript / HTML5
I'm using HTML5 to program games; the obstacle I've run into now is how to play sound effects.
18 Answers
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Assign pandas dataframe column dtypes
...e types explicitly with pandas DataFrame.astype(dtype, copy=True, raise_on_error=True, **kwargs) and pass in a dictionary with the dtypes you want to dtype
here's an example:
import pandas as pd
wheel_number = 5
car_name = 'jeep'
minutes_spent = 4.5
# set the columns
data_columns = ['wheel_number...
Do a “git export” (like “svn export”)?
I've been wondering whether there is a good "git export" solution that creates a copy of a tree without the .git repository directory. There are at least three methods I know of:
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