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What does the keyword Set actually do in VBA?
... A VB object reference is not quite the same as a C pointer. And there is no equivalent of "&i" in VB.
– Tomalak
Dec 8 '08 at 14:02
10
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Extracting the last n characters from a string in R
...se R, but it's straight-forward to make a function to do this using substr and nchar:
x <- "some text in a string"
substrRight <- function(x, n){
substr(x, nchar(x)-n+1, nchar(x))
}
substrRight(x, 6)
[1] "string"
substrRight(x, 8)
[1] "a string"
This is vectorised, as @mdsumner point...
What is the difference between self-types and trait subclasses?
...njection in Scala, including the Cake Pattern. If you Google "Cake Pattern and Scala", you'll get many links, including presentations and videos. For now, here is a link to another question.
Now, as to what is the difference between a self type and extending a trait, that is simple. If you say B ex...
How to disable Golang unused import error
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If you add the underscore to "fmt" in Gogland, it automatically adds "fmt" so that you have both _"fmt" and "fmt", which renders it useless in this IDE
– kramer65
Sep 8 '17 at 8:54
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SQL statement to get column type
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FROM INFORMATION_SCHEMA.COLUMNS
WHERE
TABLE_NAME = 'yourTableName' AND
COLUMN_NAME = 'yourColumnName'
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How to define a List bean in Spring?
...gt;
</util:list>
The value-type is the generics type to be used, and is optional. You can also specify the list implementation class using the attribute list-class.
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Colspan/Rowspan for elements whose display is set to table-cell
... does not explicitly rule that solution must be pure CSS, I'll be stubborn and throw in my workaround I figured out today, especially since it's much more elegant than having a table inside a table.
Example equals to <table> with two cells per row and two rows, where the cell in the second ro...
“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
I'm developing a page that pulls images from Flickr and Panoramio via jQuery's AJAX support.
17 Answers
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Delete with Join in MySQL
...oject_id
WHERE projects.client_id = :client_id
In this case, table_name1 and table_name2 are the same table, so this will work:
DELETE projects FROM posts INNER JOIN [...]
You can even delete from both tables if you wanted to:
DELETE posts, projects FROM posts INNER JOIN [...]
Note that orde...
What is `git diff --patience` for?
... does the patience algorithm differ from the default git diff algorithm, and when would I want to use it?
3 Answers
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