javascript

// Calling functions dynamically
var str = 'fisica'

var actions = {
  fisica: function() {console.log('Fisica')},
  moral: function() {console.log('Moral')}
}

actions[str]()

//Substring example
var clabe = '072180002095154312'
var bankCode = '40072'

if(clabe.substring(0,3) == bankCode.substring(bankCode.length-3, bankCode.length)){
  console.log('It is equals')
} else {
  console.log('Is not equals due to', clabe.substring(0,3) + " != " + bankCode.substring(bankCode.length-3, bankCode.length))
}