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Is it possible to implement dynamic getters/setters in JavaScript?
I am aware of how to create getters and setters for properties whose names one already knows, by doing something like this:
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MySQL, update multiple tables with one query
...lable in our stock by the same number in Books table.
UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
Books.InStock = Books.InStock - 2
WHERE
Books.BookID = Orders.BookID
AND Orders.OrderID = 1002;
...
How to set working/current directory in Vim?
...hich will also change to the directory the current file is in, but without setting autochdir.
:cd
will change directory to your home directory (or on windows, print the current directory).
:cd -
will change the directory to the previous directory you visited.
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How to make Git pull use rebase by default for all my repositories?
Is there a way to setup the host Git repository such that any git pull done from its (local) clones uses --rebase by default? By searching on Stack Overflow, I learned about branch.autosetuprebase , but it needs to be configured per clone individually.
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Why use the SQL Server 2008 geography data type?
...SQL by Paul Burrows BCIS
*/
DECLARE @C_RADIUS_EARTH_KM As Decimal(38, 19)
SET @C_RADIUS_EARTH_KM = 6370.97327862
DECLARE @C_RADIUS_EARTH_MI As Decimal(38, 19)
SET @C_RADIUS_EARTH_MI = 3958.73926185
DECLARE @C_PI As Decimal(38, 19)
SET @C_PI = pi()
DECLARE @Lat1 As Decimal(38, 19)
DECLARE @Lat2 ...
What is choice_set in this Django app tutorial?
...Question too, automatically generating a field on each instance called foo_set where Foo is the model with a ForeignKey field to that model.
choice_set is a RelatedManager which can create querysets of Choice objects which relate to the Question instance, e.g. q.choice_set.all()
If you don't like ...
Pandas conditional creation of a series/dataframe column
...
If you only have two choices to select from:
df['color'] = np.where(df['Set']=='Z', 'green', 'red')
For example,
import pandas as pd
import numpy as np
df = pd.DataFrame({'Type':list('ABBC'), 'Set':list('ZZXY')})
df['color'] = np.where(df['Set']=='Z', 'green', 'red')
print(df)
yields
Set...
Array include any value from another array?
...; works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis' answer -- probably because & allocates a new Array while another solution does not and works as a simple...
updating table rows in postgres using subquery
...
Postgres allows:
UPDATE dummy
SET customer=subquery.customer,
address=subquery.address,
partn=subquery.partn
FROM (SELECT address_id, customer, address, partn
FROM /* big hairy SQL */ ...) AS subquery
WHERE dummy.address_id=subquery.address...
How do you set the startup page for debugging in an ASP.NET MVC application?
...
Go to your project's properties and set the start page property.
Go to the project's Properties
Go to the Web tab
Select the Specific Page radio button
Type in the desired url in the Specific Page text box
...