Scope.md

Scope Instructor Notes

Objectives

• Define what scope is
• Explain the three types of scope.
• Explain what hoisting is, and when it occurs
• Identify which scope data is stored in.

What is scope?

Turn your neighbor and explain what scope is. Be prepared share with the class.

What are the three types of scope?

Turn to your neighbor and name the three different types of scope

What is hoisting, and when does it occur?

Turn to your neighbor and define hoisting, and when it occurs.

Where is data stored in?

var name = 'Roger' // <- where is this stored?

function toUpper(name){
  var upperName = name.toUpperCase() // where are these stored?
  return upperName
}

for(var i = 0; i < 10; i++){ // where is `i` stored?
  console.log(i)
}

for(let i = 0; i < 10; i++){ // where is `i` stored?
  console.log(i)
}