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add a string prefix to each value in a string column using Pandas
...pply combined with format (or better with f-strings) which I find slightly more readable if one e.g. also wants to add a suffix or manipulate the element itself:
df = pd.DataFrame({'col':['a', 0]})
df['col'] = df['col'].apply(lambda x: "{}{}".format('str', x))
which also yields the desired outpu...
In PHP what does it mean by a function being binary-safe?
...ready mentioned what binary safe means in general.
In PHP, the meaning is more specific, referring only to what Michael gives as an example.
All strings in PHP have a length associated, which are the number of bytes that compose it. When a function manipulates a string, it can either:
Rely on th...
How to exclude a file extension from IntelliJ IDEA search?
...ction "File name Filter" to exclude an extension use !*.java. You can give more detailed patterns as well for example I use the pattern below to only return .java files except those with a name starting or ending with test.
Pattern: !*test.java,*.java,!Test*.java
In recent versions of Intellij th...
How can I generate Unix timestamps?
Related question is "Datetime To Unix timestamp", but this question is more general.
18 Answers
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Adjust width of input field to its input
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127
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Find out whether radio button is checked with JQuery?
...d"); } - you forgot the jQuery $ sign and then need to wrap it all in some more parenthesis.
– zuallauz
Nov 2 '11 at 8:28
2
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Case in Select Statement
...E expression to change the display of product line categories to make them more understandable.
USE AdventureWorks2012;
GO
SELECT ProductNumber, Category =
CASE ProductLine
WHEN 'R' THEN 'Road'
WHEN 'M' THEN 'Mountain'
WHEN 'T' THEN 'Touring'
WHEN 'S' THE...
Checking that a List is not empty in Hamcrest
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Persistence unit as RESOURCE_LOCAL or JTA?
...arate PersistenceContexts/Caches. It
is almost never a good idea to have more than one
instance of an EntityManager in use (don't create a
second one unless you've destroyed the first)
With <persistence-unit
transaction-type="JTA"> the
CONTAINER will do EntityManager
(P...
Programmatically change the src of an img tag
...i think the jQuery is useful just for websites that uses a same code, very more. for example if we use the above code more than 30 or 50 times. so it's necessary to use jQuery
– Mahdi Jazini
Nov 30 '16 at 17:44
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