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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...not fit your use case).
SELECT id, (0 || values)::integer from test_table ORDER BY id
Test data:
CREATE TABLE test_table
(
id integer NOT NULL,
description character varying,
"values" character varying,
CONSTRAINT id PRIMARY KEY (id)
)
-- Insert Test Data
INSERT INTO test_table VALUES (...
How does __proto__ differ from constructor.prototype?
...hat is function Empty() {} you refer to being equal to Function.prototype, etc?, what is the code you used in chrome console?
– drodsou
Jul 28 '12 at 18:32
2
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Unit test naming best practices [closed]
...e_When_Deposit_Is_Made" "Should_Decrease_Balance_When_Withdrawal_Is_Made", etc. Reads very like a specification, which is sort of what TDD is all about.
– Simon Tewsi
Jan 22 '13 at 0:00
...
Git, How to reset origin/master to a commit?
... the ideas here. I'm not sure how or if can do this for bitbucket, github etc... And @intuitivepixel that is pointless as it reverse what you were trying to achieve with the hard reset.
– HankCa
Jul 18 '15 at 13:30
...
Edit a commit message in SourceTree Windows (already pushed to remote)
...hrough the GUI, so
you'll need to use Git from the command line anyways in order to do that.
Click Terminal from the GUI to open up a terminal.
Step 7
From the terminal force-push with the following command,
git push origin <branch> -f
where <branch> is the name of the branch tha...
Matplotlib scatterplot; colour as a function of a third variable
...eral different grayscale colormaps pre-made (e.g. gray, gist_yarg, binary, etc).
import matplotlib.pyplot as plt
import numpy as np
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
plt.scatter(x, y, c=y, s=500, cmap='gray')
plt.show()
...
How can I update the current line in a C# Windows Console App?
...
You can use Console.SetCursorPosition to set the position of the cursor and then write at the current position.
Here is an example showing a simple "spinner":
static void Main(string[] args)
{
var spin = new ConsoleSpinner();
Console.Wr...
Custom domain for GitHub project pages
... ways, for example using a CNAME for the @ host, but it will break e-mail, etc. This is the best solution I have found. Thank you.
– Steven L.
Dec 11 '15 at 15:36
1
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Difference between knockout View Models declared as object literals vs functions
...asons:
Not using this, which can confusion when used within ko.computeds etc
My viewModel is a singleton, I don't need to create multiple instances (i.e. new viewModel())
share
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improve this an...
Emulate ggplot2 default color palette
...ically, @DidzisElferts shows how you can get all the colours, coordinates, etc that ggplot uses to build a plot you created. Very nice!
p <- ggplot(mpg,aes(x=class,fill=class)) + geom_bar()
ggplot_build(p)$data
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fill y count x ndensity ncount density PANEL group ymin ymax xmin xmax
1...