LoDash Problem

LoDash can search dynamic object -array but it cannot do so with typed object-array.

JavaScript

console.clear();

function Event(e){
    if (!e) return this;
    this.id = e.id;
    this.text = e.text;
}
Event.prototype.id = 0;
Event.prototype.text = null;

function Person(e){
    this.id = e.id;
    this.name = e.name;
    this.event = new Event(e.event);
}
Person.prototype.id = 0;
Person.prototype.name = null;
Person.prototype.event = null;

function main(){
    var typedArray = [];
    typedArray.push(new Person({
        id: 1,
        name: "Adnan"
    }));
    typedArray.push(new Person({
        id: 2,
        name: "Adnan",
        event: {
            id: 101,
            text: "Sample event"
        }
    }));
    typedArray.push(new Person({
        id: 3,
        name: "Asif"
    }));
    
    var dynamicArray = JSON.parse(JSON.stringify(typedArray));
                                  
    var typedResult   = _.find(typedArray,   {name: "Adnan", event: {id: 101}});
    var typedResult1   = _.find(typedArray, function(p) {
         return p.name === "Adnan" && p.event && p.event.id === 101;
    });
    var dynamicResult = _.find(dynamicArray, {name: "Adnan", event: {id: 101}});
    console.log("typedArray: ", typedArray);
    console.log("dynamicArray: ", dynamicArray);
    console.log("typedResult: ", typedResult);
    console.log("typedResult1: ", typedResult1);
    console.log("dynamicResult: ", dynamicResult);
}

main();