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function People(name,sex){
  this.name = name
  this.sex  = sex
  this.hobbit = []
}
People.prototype.addHobbit = function(h){
  this.hobbit.push(h)
  return this
}
People.prototype.todos = function(){
  console.log('Looking for work.......')
}
var I = new People('Elsie','female')
I.addHobbit('eat').addHobbit('sleep').addHobbit('coding').addHobbit('music').addHobbit('lose weight')
while (true){
  I.todos()
}