CODEWITHSUNDEEP
javascriptprototype
photosynthesis
photosynthesis

Reputation: 2890

prototype issue in JavaScript

I have the following piece of code:

function University(name) {
    this.name = name
}
University.prototype = {
    sayName: function() {
        console.log(this.name)
    },
    toString: function() {
        console.log("WUSTL")
    }
};
var univ = new University("Washington University");
console.log(univ instanceof University);
console.log(univ.constructor == University); // false
console.log(univ.constructor == Object);     // true

can anybody help to explain why the constructor of the instance of 'University' got changed to Object instead of University?

Upvotes: 1

Views: 37

Answers (1)

Paul Kienitz
Paul Kienitz

Reputation: 878

Because you overwrote the original prototype which knew the identity of the constructor.

Upvotes: 3

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