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Can I use require(“path”).join to safely concatenate urls?
... takes any number. So depending on what you're doing you may need to nest calls, eg.. url.resolve(url.resolve(SERVER_URL, pagePath), queryString)
– Molomby
Aug 23 '19 at 0:31
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...terned. The
distinct values are stored in a string
intern pool.
Basically, a string intern pool allows a runtime to save memory by preserving immutable strings in a pool so that areas of the application can reuse instances of common strings instead of creating multiple instances of it.
As an ...
What should main() return in C and C++?
...d termination) according to the C++ standard. For C, re-entering main() is allowed, but should be avoided.
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Using OR in SQLAlchemy
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@intgr The example showed by robru is still efficient, if you want to use another operator instead of in_, for example the LIKE operator.
– Lhassan Baazzi
Jul 12 '17 at 1:41
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Error Dropping Database (Can't rmdir '.test\', errno: 17)
Basically, I was taught on how to create a root password using the "mysqladmin -u root -p password" command, this was done all through the windows command editor. Now, the next process was to display the default databases (info. schema, mysql and test) which was achieved by using "SHOW DATABASES;"
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Insert all values of a table into another table in SQL
... Asterix will disappear)
Note - 1: If the columns are not in the correct order as in Target table, you can always follow Step 2, and Select the Columns in the same order as in the Target table
Note - 2 - If you have Identity columns then execute SET IDENTITY_INSERT sometableWithIdentity ON and th...
Is it possible to focus on a using JavaScript focus() function?
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Yes - this is possible. In order to do it, you need to assign a tabindex...
<div tabindex="0">Hello World</div>
A tabindex of 0 will put the tag "in the natural tab order of the page". A higher number will give it a specific order of pri...
Why is rbindlist “better” than rbind?
...bind.data.frame will account for the fact that columns may be in different orders, and match up by name), rbindlist doesn't do this kind of checking, and will join by position
eg
do.call(rbind, list(data.frame(a = 1:2, b = 2:3), data.frame(b = 1:2, a = 2:3)))
## a b
## 1 1 2
## 2 2 3
## 3 2 ...
Rails migration for has_and_belongs_to_many join table
...r_id:integer
(note the table name lists both join tables in alphabetical order)
and then for rails 3 and below only, you need to edit your generated migration so an id field is not created:
create_table :students_teachers, :id => false do |t|
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Gulp command not found after install
...ed the npm root -g was pointing to /usr/local/lib/node_modules/npm, but in order to install gulp in /usr/local/lib/node_modules, I had to use sudo:
sudo npm install gulp -g
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