lizruelas / hoisting Goto Github PK

+++ Codigo Inicial var feature = "closures";

(function () {
if ( typeof feature === "undefined" ){
var feature = "callbacks";
console.log("JS coders love its " + feature );
} else {
console.log("JS developers love its " + feature );
} })();

+++ Codigo Modificado var feature = "closures";

(function () {
if ( typeof feature === "undefined" ){
feature = "callbacks";
console.log("JS coders love its " + feature );
} else {
console.log("JS developers love its " + feature );
} })();

+++ ARGUMENTO El var declarado en la linea 6 hace que el interprete "Eleve" mi variable asi : (function () {
var feature; // ----> la variable esta elevada if ( typeof feature === "undefined" ){
feature = "callbacks";
console.log("JS coders love its " + feature );//----> undefined
} else {
console.log("JS developers love its " + feature );
} })();

al eliminar el var de la linea 6 ya el interprete ya no "Eleva" la variable es decir ya no es undefined asi imprimira el ELSE.