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How to drop a database with Mongoose?
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There is no method for dropping a collection from mongoose, the best you can do is remove the content of one :
Model.remove({}, function(err) {
console.log('collection removed')
});
But there is a way to access the mongodb native javasc...
Most lightweight way to create a random string and a random hexadecimal number
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I got a faster one for the hex output. Using the same t1 and t2 as above:
>>> t1 = timeit.Timer("''.join(random.choice('0123456789abcdef') for n in xrange(30))", "import random")
>>> t2 = timeit.Timer("binascii.b2a_hex(os.ur...
How to generate all permutations of a list?
...th Python 2.6 (and if you're on Python 3) you have a standard-library tool for this: itertools.permutations.
import itertools
list(itertools.permutations([1, 2, 3]))
If you're using an older Python (<2.6) for some reason or are just curious to know how it works, here's one nice approach, tak...
How to get nice formatting in the Rails console
...you are in script/console
As jordanpg commented, this answer is outdated. For Rails 3.2+ you need to execute the following code before you can get the y method to work:
YAML::ENGINE.yamler = 'syck'
From ruby-docs
In older Ruby versions, ie. <= 1.9, Syck is still provided, however it
was...
How to select only 1 row from oracle sql?
I want to use oracle syntax to select only 1 row from table DUAL . For example, I want to execute this query:
13 Answers
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Is there any way to git checkout previous branch?
I sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
... the patch level indicate that this is currently RVM's default patch level for ruby 1.9.2.
Finally, to install the new ruby version, just run rvm install 1.9.2 - and wait for it to compile!
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How to set Sqlite3 to be case insensitive when string comparing?
... here). You can specify collate nocase when you create an index as well. For example:
create table Test
(
Text_Value text collate nocase
);
insert into Test values ('A');
insert into Test values ('b');
insert into Test values ('C');
create index Test_Text_Value_Index
on Test (Text_Value c...
“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
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+1 for the "log out and log back in". I wasted five minutes not realising I had to do that.
– Matthew G
Jun 1 '13 at 11:44
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Run cURL commands from Windows console
...oned yet. You might have it already if you installed Haskell at some point for example.
– DPM
Aug 21 '17 at 0:37
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