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What's the Point of Multiple Redis Databases?
...need not wait on another db, but what if that action is saving to the dump file, or processing transactions on slaves? At that point you start getting into the weeds of concurrency programming.
By using multiple instances you turn multi threading complexity into a simpler message passing style sys...
Getting All Variables In Scope
...pera, or "F12 Developer Tools" on IE. And read through whatever JavaScript files they provide you. And beat them over the head for proper docs. :-)
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Cross-reference (named anchor) in markdown
...s://bitbucket.org/tutorials/markdowndemo/overview (edit source of this .md file and look at how anchors are made).
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Encode html entities in javascript
...much for the jsfiddle. So to implement this. I can just add this to my .js file and add the other things to wrap with a <sup>?
– JGallardo
Sep 11 '13 at 21:28
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How to “pull” from a local branch into another one?
... just a shorthand for "whatever repository location defined in .git/config file (usually set up automatically when cloning a repository)
– knittl
May 4 '19 at 23:24
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Merge git repo into branch of another repo
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Start from your repo directory, make sure your working copy is clean (no files changed, added or removed).
Make a new branch:
git checkout -b <my-branch>
Add the secondary remote, then fetch it:
git remote add <repo-name> git@github.com:xxx/<repo-name>.git
git remote update...
Rails detect if request was AJAX
...rb(main):005:0> /asfd/ =~ 'haystack'
=> nil
It's based on this:
# File actionpack/lib/action_dispatch/http/request.rb, line 220
def xml_http_request?
@env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/
end
so
env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/ => 0
The docs:
http:/...
CocoaPods - use specific pod version
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In your Podfile:
pod 'AFNetworking', '1.2.0'
Check 'Get started' at http://cocoapods.org
Once this is done, you can then issue a pod update in the terminal for the change to take place. Of course, this needs to be done from your pr...
How to show SQL queries run in the Rails console?
...s_panel
It consists of developer console panel add-on for chrome, and gem file which needs to be added to your application's Gemfile like this:
group :development do
gem 'meta_request'
end
Then run again:
bundle install
Restart your application, open it, and launch developer console, and yo...
Difference between database and schema
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A database is the main container, it contains the data and log files, and all the schemas within it. You always back up a database, it is a discrete unit on its own.
Schemas are like folders within a database, and are mainly used to group logical objects together, which leads to ease of...