A function to print prototype chain for a given object

Question

Sometimes I get lost in prototype chain of my JavaScript objects, so I would like to have a function that would print in a friendly way the prototype chain of a giv

Answer 1

This function shows prototype chain of any object clearly:

function tracePrototypeChainOf(object) {

    var proto = object.constructor.prototype;
    var result = '';

    while (proto) {
        result += ' -> ' + proto.constructor.name;
        proto = Object.getPrototypeOf(proto)
    }

    return result;
}

var trace = tracePrototypeChainOf(document.body)
alert(trace);

tracePrototypeChainOf(document.body) returns "-> HTMLBodyElement -> HTMLElement -> Element -> Node -> EventTarget -> Object"