WelcomeUDT

█  OVERVIEW
This is a simplest example of user-defined types (UDT) or objects, which simplify as alternative to hello world.

█  CREDITS
Tradingview

█  USAGE
These are the types used during initializations, commonly variables.

export type Settings
    int     bar
    float   price
    string  phrase
    ...

Example of library function to print out label.

export printLabel(Settings setup) =>
    if setup.variable
        var label lab = na
        label.delete(lab)
        lab := label.new(setup.bar, setup.price, setup.phrase, color = setup.bg)
    else
        label.new(setup.bar, setup.price, setup.phrase, color = setup.bg)

Usage of types

Settings setup = Settings.new(bar_index[0], priceInput, phraseInput, colorInput, variableInput)

Alternative way to write types

Settings setup = Settings.new(
   bar      = bar_index[0],
   price    = priceInput,
   phrase   = phraseInput,
   variable = variableInput)

Usage of types into custom function / library function.

printLabel(setup)

printLabel(Settings)
  Print out label
  Parameters:
    Settings: types
  Returns: Label object

Settings
  Initialize type values
  Fields:
    bar: X position for label
    price: Y position for label
    phrase: Text for label
    bg: Color for label
    variable: Boolean for enable new line and delete line