index.js
function Prompt () {
  Base.apply(this, arguments);

  if (!this.opt.basePath) {
    this.throwParamError('basePath');
  }

  this.pathIndexHash = {};
  this.originalBaseDir = this.currentPath =
    path.normalize(path.isAbsolute(this.opt.basePath) ?
      path.resolve(this.opt.basePath) : path.resolve(process.cwd(), this.opt.basePath));

  if (String(this.currentPath).endsWith(path.sep)) {
    this.currentPath = String(this.currentPath).slice(0, -1);
  }

  this.onlyOneFile = !!this.opt.onlyOneFile;

  this.opt.choices = new Choices(this.createChoices(this.currentPath), this.answers);
  this.selected = 0;

  if (this.opt.filterItems) {
    assert(typeof this.opt.filterItems === 'function', ' "filterItems" option property must be a function.');
  }

  this.firstRender = true;

  // Make sure no default is set (so it won't be printed)
  this.opt.default = null;
  this.searchTerm = '';
  this.paginator = new Paginator();
}
function Prompt () {
  Base.apply(this, arguments);

  if (!this.opt.basePath) {
    this.throwParamError('basePath');
  }

  this.pathIndexHash = {};
  this.originalBaseDir = this.currentPath =
    path.normalize(path.isAbsolute(this.opt.basePath) ?
      path.resolve(this.opt.basePath) : path.resolve(process.cwd(), this.opt.basePath));

  if (String(this.currentPath).endsWith(path.sep)) {
    this.currentPath = String(this.currentPath).slice(0, -1);
  }

  this.onlyOneFile = !!this.opt.onlyOneFile;

  this.opt.choices = new Choices(this.createChoices(this.currentPath), this.answers);
  this.selected = 0;

  if (this.opt.filterItems) {
    assert(typeof this.opt.filterItems === 'function', ' "filterItems" option property must be a function.');
  }

  this.firstRender = true;

  // Make sure no default is set (so it won't be printed)
  this.opt.default = null;
  this.searchTerm = '';
  this.paginator = new Paginator();
}
function Prompt ( ) { Base . apply ( this , arguments ) ; if ( ! this . opt . basePath ) { this . throwParamError ( 'basePath' ) ; } this . pathIndexHash = { } ; this . originalBaseDir = this . currentPath = path . normalize ( path . isAbsolute ( this . opt . basePath ) ? path . resolve ( this . opt . basePath ) : path . resolve ( process . cwd ( ) , this . opt . basePath ) ) ; if ( String ( this . currentPath ) . endsWith ( path . sep ) ) { this . currentPath = String ( this . currentPath ) . slice ( 0 , - 1 ) ; } this . onlyOneFile = ! ! this . opt . onlyOneFile ; this . opt . choices = new Choices ( this . createChoices ( this . currentPath ) , this . answers ) ; this . selected = 0 ; if ( this . opt . filterItems ) { assert ( typeof this . opt . filterItems === 'function' , ' "filterItems" option property must be a function.' ) ; } this . firstRender = true ; // Make sure no default is set (so it won't be printed) this . opt . default = null ; this . searchTerm = '' ; this . paginator = new Paginator ( ) ; }
stores what index to use for a path if you go back a directory 
Constructor
stores what index to use for a path if you go back a directory Constructor