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:

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"

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Powerlevel9k

آسمان رنگ تو آبی آبی

آسمان دریای پر ز آبی

چه بگویم ز ستاره گانت

که خودت کشور آفتابی

آسمان عاشق مهتابی تو و

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

	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

	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

	[
	{
	"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",

	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