JS Hoisting

hoisting.js

function hoist() {
  for(var i = 0; i < 10 i++){
    var test = "Test";
  }
  console.log(test);
}


function hoist2() {
  var test;
  for(var i = 0; i < 10 i++){
    test = "Test";
  }
  console.log(test);
}



var myvar = "im a global";
 
function scopeLevels(){
    alert(myvar);   // expected "global variable", result: undefined
    var myvar = "i am not a global";
    alert(myvar); // local variable
}

var myvar = "im a global";
 
function scopeLevels2(){
    var myvar;
    alert(myvar);   // expected "global variable", result: undefined
    myvar  = "i am not a global";
    alert(myvar); // local variable
}

function functionalDecs() {
  //do some stuff
  functionalexpressionExample()
  //morestuff
  myvar = function(){};
  myvar();
  function functionalExpressionExample(){};
}


function bestPracticesBad() {
  var myvar = 5
  if(myvar === 5){
    var somthing = somthingElse;
    var thisAndThat = thatAndThis; 
    //do something with myVar
  }
  somthing = "this code makes me sad"
}

function bestPractiesGood() {
  var myVar = 5;
  var somthing = somthingElse;
  var thisAndThat = thatAndThis;
  
  if(myVar === 5){
    //somthing
  }  
  somthing = "this code makes me happy"
}