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1. gist Table of Contents gist Table of Contents

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   # jittdev's Gists

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   ## Table of Contents

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   ### Categories: [#ALGORITHMS](#ALGORITHMS-9) | [#Angular](#Angular-8) | [#api](#api-12) | [#Bootstrap5](#Bootstrap5-1) | [#C](#C-25) | [#CRON](#CRON-2) | [#DataGrip](#DataGrip-1) | [#DataScience](#DataScience-1) | [#DOCKER](#DOCKER-2) | [#error](#error-2) | [#error_reporting](#error_reporting-1) | [#git](#git-4) | [#HTML](#HTML-1) | [#Javascript](#Javascript-24) | [#Objective](#Objective-4) | [#PostgreSQL](#PostgreSQL-3) | [#Python](#Python-63) | [#REACT](#REACT-1) | [#React](#React-3) | [#REST](#REST-2) | [#RSpec](#RSpec-10) | [#Ruby](#Ruby-36) | [#shell](#shell-17) | [#SSL](#SSL-2) | [#USEFUL](#USEFUL-1) | [#VS](#VS-16) | [#VUE](#VUE-2) | [#Wordpress](#Wordpress-4) | [#XXXNoWork](#XXXNoWork-1) | [#Uncategorized](#Uncategorized-4)

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   ### ALGORITHMS (*9*)

2. Copy Constructor :: #C++ Copy Constructor :: #C++

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   // Automatic Copy Constructor provides an automatic copy constructor for our class if we do not provide a custom one.

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   // The automatic copy constructor will copy the contents of all member variables.

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   /* Custom Copy Constructor must:

3. i/o files :: #Python Advanced i/o files :: #Python Advanced

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   my_file = open('test.txt')

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   print(my_file.read()) #reads last line once

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   my_file.seek(0)  #puts the file cursor back to start (at last line)

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4. Recursion II Arrays and Objects :: #... Recursion II Arrays and Objects :: #Javascript

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   // adding all the elements of a limitless nested array

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   function arraySum(anArr) {

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     let sum = 0;

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     for (let i = 0; i < anArr.length; i++) {

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       let element = anArr[i];

5. new rails 7 with bootstrap 5 :: #Rub... new rails 7 with bootstrap 5 :: #Ruby / Rails

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   rails new my_app_name -j esbuild -css bootstrap -d mysql #-O for no db/activerecord

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   cd my_app_name

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   rails javascript:install:webpack

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   rails css:install:bootstrap

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   rails assets:clobber

6. RUBY Example of using JSON response ... RUBY Example of using JSON response :: #REST

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   # put this in a ruby_file.rb

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   #!/usr/bin/env ruby

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   require 'rest-client'

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   require 'awesome_print'

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   require 'json'