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How to run `rails generate scaffold` when the model already exists?
...roller.rb
invoke haml
create app/views/users
create app/views/users/index.html.haml
create app/views/users/edit.html.haml
create app/views/users/show.html.haml
create app/views/users/new.html.haml
create app/views/users/_form.html.haml
invoke test_unit
create test/controllers/...
Explain the use of a bit vector for determining if all characters are unique
...bits (flag). Each bit in your code states whether the character with bit's index was found in string or not. You could use bit vector for the same reason instead of int. There are two differences between them:
Size. int has fixed size, usually 4 bytes which means 8*4=32 bits (flags). Bit vector us...
How to continue a Docker container which has exited
...ter it exited and your changes are still there.
docker start `docker ps -q -l` # restart it in the background
docker attach `docker ps -q -l` # reattach the terminal & stdin
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
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DISTINCT will be faster only if you DON'T have an index (as it doesn't sort). When you do have an index and it's used, they're synonyms.
– Quassnoi
Feb 27 '09 at 15:11
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How to exit from PostgreSQL command line utility: psql
What command or short key can I use to exit the PostgreSQL command line utility psql ?
9 Answers
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What parameters should I use in a Google Maps URL to go to a lat-lon?
...you can use something like
https://www.google.com/maps/search/?api=1&query=58.698017,-152.522067
to open map and place marker on some lat and lng.
For further details please refer to:
https://developers.google.com/maps/documentation/urls/guide
...
How can I get browser to prompt to save password?
...age (using backbone.js). As soon as I embed my login form directly into my index.html file, everything worked like a charm.
I think this is because the browser has to be aware that there is an existing login form, but since mine was being dynamically injected into the page, it didn't know that a "r...
What is normalized UTF-8 all about?
The ICU project (which also now has a PHP library ) contains the classes needed to help normalize UTF-8 strings to make it easier to compare values when searching.
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In jQuery, how do I get the value of a radio button when they all have the same name?
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In your code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12...
Restart node upon changing a file
...command forever -c babel-node -w --watchDirectory ./server ./server/index.js but sadly it seems to send forever into a tailspin and it restarts the server too often, resulting in port already in use errors...is there someway to add a pause after a restart?
– Brian Di Pa...