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rockstarartist/prototypetest.js

Created March 5, 2017 01:59
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JavaScript Prototype and hasOwnProperty test
Raw
prototypetest.js
function A() {
this.x = "I'm an own property";
}
A.prototype.y = "I'm not an own property";
var instance = new A();
console.log(instance.hasOwnProperty("x")); // true
console.log(instance.hasOwnProperty("y")); // false
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