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Postgres DB Size Command
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Based on the answer here by @Hendy Irawan
Show database sizes:
\l+
e.g.
=> \l+
berbatik_prd_commerce | berbatik_prd | UTF8 | en_US.UTF-8 | en_US.UTF-8 | | 19 MB | pg_default |
berbatik_stg_commerce | berbatik_stg ...
Changing image size in Markdown
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You could just use some HTML in your Markdown:
<img src="drawing.jpg" alt="drawing" width="200"/>
Or via style attribute (not supported by GitHub)
<img src="drawing.jpg" alt="drawing" style="width:200px;"/>
Or you could use a custom CSS file as described in this answer...
HMAC-SHA1 in bash
...c "$key" "$@"
}
# hex output by default
hash_hmac "sha1" "value" "key"
# raw output by adding the "-binary" flag
hash_hmac "sha1" "value" "key" -binary | base64
# other algos also work
hash_hmac "md5" "value" "key"
shar...
how to change any data type into a string in python
... It's probably true that the majority of core library objects by raw percentage return the object.__repr__-style angle-bracket representation, but many of the most commonly used ones do not. The rule of thumb for repr is that if it makes sense to return Python code that could be evaluated ...
Purpose of “consider_all_requests_local” in config/environments/development.rb?
...rom developers, see a more useful error message that includes line numbers and a backtrace. consider_all_requests_local allows your app to display these developer-friendly messages even when the machine making the request is remote.
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jQuery event for images loaded
...perty for IMG element load states:
http://github.com/peol/jquery.imgloaded/raw/master/ahpi.imgload.js
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Should I URL-encode POST data?
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curl will encode the data for you, just drop your raw field data into the fields array and tell it to "go".
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How do I check the difference, in seconds, between two dates?
... date of either invocation - we care about the elapsed time. So just use a raw timestamp, as shown.
– Karl Knechtel
Dec 6 '10 at 1:58
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How can I center an absolutely positioned element in a div?
...ite big, this caused the outer div to go beyond the right edge of the page and cause horizontal scrolling. I swapped out the "left" css property for "right", and so far it works better since going over the left edge of the screen doesnt cause scrolling
– BoomShaka
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How to add additional fields to form before submit?
Is there a way to use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST?
6 Answers...