tokhi

Go Tutorial

Function Types

Function type is useful:

• In the case of higher-order functions as we have seen in the above example. The argument and return type is specified using function type
• In the case of defining interfaces in go as in the interface, only the function type is specified. Whatever implements this interface has to define a function of the same type

Notice that the interface shape only defines the type of function

tokhi

def break_even(long_sp, short_sp, ndp)
  if long_sp > short_sp # bear option
    long_sp - ndp
  else # bull option
   long_sp + ndp
  end
end

def max_profit(long_sp, short_sp, ndp)
  if(long_sp > short_sp) # bear option

tokhi

[
  {
    "lead": {
      "id": 299888,
      "trade_id": 6,
      "details": {
        "project_deadline": "So schnell wie möglich"
      },
      "closed_at": null,
      "expiration_date": "2018-12-13T01:22:19.000+01:00",

tokhi

آسمان رنگ تو آبی آبی

آسمان دریای پر ز آبی

چه بگویم ز ستاره گانت

که خودت کشور آفتابی

آسمان عاشق مهتابی تو و

tokhi

Default

Powerlevel9k

tokhi

Adding/removing custom fields

Add and remove bootstrap custom fields by single clicks

index.html file:

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" 
<link rel="stylesheet" href="scripts/main.js" 

tokhi

v = Vela::DB.new
v.src_connection(user: 'user', password: 'pass', host: '127.0.0.1', database: 'testpdb', adapter: 'postgresql')
v.dst_connection(user: 'root', password: 'pass', host: '127.0.0.1', database: 'testdb', adapter: 'mysql')

v.dbsync("src_tbl", "dst_tbl")  # destination table should already been exist

# if your destination tables' columns are different than the source table (e.g; clonse `col1` data to m_col1 column):
v.dbsync("your_src_tbl", "your_dst_tbl", {"col1" => "m_col1", "col2" => "m_col2"})  # you can add as much as column as you want

tokhi

v = Vela::DB.new
v.src_connection(user: 'root', password: 'pass', host: '127.0.0.1', database: 'testdb', adapter: 'mysql')
v.dst_connection(user: 'user', password: 'pass', host: '127.0.0.1', database: 'testpdb', adapter: 'postgresql')
v.dbsync("src_tbl", "dst_tbl")  # destination table should already been exist

# if your destination tables' columns are different than the source table (e.g; clonse `col1` data to m_col1 column):
v.dbsync("your_src_tbl", "your_dst_tbl", {"col1" => "m_col1", "col2" => "m_col2"})  # you can add as much as column as you want

tokhi

Some nice ruby tips and trikcs

Deep dive into ruby scopes

has_secure_token to generate unique random token in Rails 5

Enumerable modules in ruby

Finding positive numbers in an array:

tokhi

#!/usr/bin/env ruby
# make sure you the watir gem installed -> gem install watir
require 'watir'
def log (message) puts "  #{message}" end
def success (message) puts "+ #{message}" end
def fail (message) puts "- #{message}" end
def notify (message)
  success message.upcase
  system 'osascript -e \'Display notification Burgerbot with title "%s"\'' % message
rescue StandardError => e