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MongoDB, remove object from array
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142
try..
db.mycollection.update(
{'_id': ObjectId("5150a1199fac0e6910000002")},
{ $pull...
Mounting multiple volumes on a docker container?
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Pass multiple -v arguments.
For instance:
docker -v /on/my/host/1:/on/the/container/1 \
-v /on/my/host/2:/on/the/container/2 \
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Asynchronous shell commands
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117
You can just run the script in the background:
$ myscript &
Note that this is different...
Rails migration: t.references with alternative name?
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168
You can do this all in the initial migration/column definition (at least currently in Rails 5)...
Why does sed not replace all occurrences?
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192
You should add the g modifier so that sed performs a global substitution of the contents of th...
INSERT … ON DUPLICATE KEY (do nothing)
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edited Sep 25 '19 at 4:34
izogfif
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Java Round up Any Number
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291
Math.ceil() is the correct function to call. I'm guessing a is an int, which would make a / 100 ...
rails simple_form - hidden field - create?
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310
try this
= f.input :title, :as => :hidden, :input_html => { :value => "some value" }
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How do I add a path to PYTHONPATH in virtualenv
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157
You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a fi...
What does the exclamation mark mean in a Haskell declaration?
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319
It's a strictness declaration. Basically, it means that it must be evaluated to what's called "...