Debug batamanjs model in view context

Batmanjs Custom View

class App.AutocompleteView extends Batman.View
  html: "<input type='text' />"
  autocompleteSource: -> []
  viewDidAppear: ->
    # I had to replace @node (as it is in the official documentation) to @node.firstChild since that...

ModuleNotFoundError: No module named 'cv2' in jupyter notebook

Create a new environment with as of now python 3.7 since opencv not available in conda's python 3.8 packages

conda create --name opencv-cuda python=3.7
conda activate opencv-cuda
conda install pytorch torchvision cudatoolkit=10.2 openc...

Elixir / Phoenix system packages install on opensuse 13.2

zypper ar http://download.opensuse.org/repositories/home:/Ledest:/erlang/openSUSE_13.2/home:Ledest:erlang.repo
# for inotify (live code reload)
zypper ar http://download.opensuse.org/repositories/filesystems/openSUSE_13.2/

zypper ref
zypper ...

Batmanjs Model attribute reader

$context($0).controller.model_name.get('attribute_name')

Memoization in ruby with nested methods

class Example
  def foo
    def foo
      @bar
    end
    bar = (1..10).inject(1, :*)
    puts "bar is #{bar}"
    @wibble = "wibble is #{bar / 30}"
    @bar = bar / 20
  end
end

example = Example.new
example.foo
bar is 3628800
=> 181440...

Asssign Batmanjs model option to a select element

Given the following js model:

class MyApp.Post extends Batman.Model
  @encode options

Given the server side json (generated with rabl):

object @post
attributes :id, :category
node(:categories) {
  Category::OPTIONS...

Gread in Emacs

Load TAGS file in emacs manually

M-x visit-tags-table

You need to point to the directory in which ETAGS file generated and it will be loaded.

Install XGBoost with GPU support with conda

conda install py-xgboost-gpu

source: https://docs.anaconda.com/anaconda/user-guide/tasks/gpu-packages/

set user home inside a docker container

ENV HOME /home/dev
USER dev 
RUN curl -L https://get.rvm.io | bash -s stable

Debug batamanjs model in view context

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