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How to sort a Ruby Hash by number value?
...ea.com" => 745, "siteb.com" => 9, "sitec.com" => 10 }
metrics.sort_by {|_key, value| value}
# ==> [["siteb.com", 9], ["sitec.com", 10], ["sitea.com", 745]]
If you need a hash as a result, you can use to_h (in Ruby 2.0+)
metrics.sort_by {|_key, value| value}.to_h
# ==> {"siteb.c...
Return all enumerables with yield return at once; without looping through
...
I came up with a quick yield_ snippet:
Here's the snippet XML:
<?xml version="1.0" encoding="utf-8"?>
<CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<CodeSnippet Format="1.0.0">
<Header&g...
Query EC2 tags from within instance
...Name of your current ec2 instance (the value of the "Name" tag). Modify TAG_NAME to your specific case.
TAG_NAME="Name"
INSTANCE_ID="`wget -qO- http://instance-data/latest/meta-data/instance-id`"
REGION="`wget -qO- http://instance-data/latest/meta-data/placement/availability-zone | sed -e 's:\([0-9...
How to handle configuration in Go [closed]
...onfiguration struct {
Users []string
Groups []string
}
file, _ := os.Open("conf.json")
defer file.Close()
decoder := json.NewDecoder(file)
configuration := Configuration{}
err := decoder.Decode(&configuration)
if err != nil {
fmt.Println("error:", err)
}
fmt.Println(configuration...
How to record webcam and audio using webRTC and a server-based Peer connection
...mediaOptions.audio;
navigator.mediaDevices.getUserMedia(media.gUM).then(_stream => {
stream = _stream;
id('gUMArea').style.display = 'none';
id('btns').style.display = 'inherit';
start.removeAttribute('disabled');
recorder = new MediaRecorder(stream);
recorder.ond...
Nested attributes unpermitted parameters
...ection and now you must whitelist params in the controller (instead of attr_accessible in the model) because the former optional gem strong_parameters became part of the Rails Core.
This should look something like this:
class PeopleController < ActionController::Base
def create
Person.cre...
AngularJS directive with default options
... answered Sep 13 '13 at 10:57
OZ_OZ_
11.8k66 gold badges4343 silver badges6666 bronze badges
...
config.assets.compile=true in Rails production, why not?
...pt those that start with underscore
config.assets.precompile << /(^[^_\/]|\/[^_])[^\/]*$/
you can then simply use images and stylesheets as as "/assets/stylesheet.css" in *.html.erb
or "/assets/web.png"
share
...
How to convert IPython notebooks to PDF and HTML?
...
Everything was collapsed into one page -__-
– htafoya
May 2 '18 at 22:23
2
...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...
ಠ_ಠ
and 草泥马 only contain "letters" used in actual alphabets; that is, ಠ
is a symbol from the Kannada alphabet, and 草泥马 consists of Chinese characters.
◎ and ☺, however, are purely symbols; they are not ass...