javascript - this inside callback function -


this question has answer here:

here situation.

function bird() {   this._canfly = true;   this._legs = 2;   this._flying = false; }  bird.prototype = {   fly: function() {     if ( this.canfly ) {         layer.on('fly', function() {            this.setstrokewidth(4); //this refers layer(kinetic.js) object            this._flying = true; //this refers bird object         });     }//end if   } //end function );

here need access both layer object , bird object inside callback function. can tell me how handle above situation ?

var self =

cache reference this refer when changes context.


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