Vue lifecycle hooks

var app= new Vue({ 
 el: '#app', 
 data:{ 
 a: 2 
}, beforeCreate
  : function(){ console.log ( " Before instance creation "); }, created: function(){ console.log ( "a is:"+ this. a); console. log( " after instance creation "); }, beforeMount: function(){ console. log( " before template compilation / mounting ") }, mounted: function( ){ console.log ( " Template compilation
 

 
 
 

 
 

 
 / after mounting ") 
}, 
 beforeupdated: function(){ 
 console. log( " before the instance was updated ") 
}, 
 updated: function(){ 
 console. log( " after the instance was updated ") 
}, 
 beforeDestory: function(){ 
 console.log ( " Called before the component is destroyed ") 
}, 
 destroyed: function(){ 
 console.log ( " Called after the component is destroyed ") 
} 
})