object - Javascript == operator doesn't work as expected?

I searched like 2 hours before asking this question and didn't find anything solving my problem although I think it's a rather basic one. In Java you just can use equal() to see if two objects have the same values. I thought this is how the == operator would work in Javascript. Appearently it does not. :(

I've been trying to compare two own created objects with the == operator, but it returns false although all values were equal. Why?

This is my function for creating the field object I use:

function field(player, figureKind) {
    this.player = player;
    this.figureKind = figureKind;
    this.hidden = true;
    if (player == 1 && hidden && figureKind != trapF && figureKind != flagF) {
        this.image = figureKind.getImage(0);
    } else if (player != 1 && hidden) {

        this.image = hidden;
    } else {
        this.image = figureKind.getImage(player);
    }
    this.setKind = setKind;

    function setKind(figureKind) {
        this.figureKind = figureKind;
        this.image = figureKind.getImage(player);
    }

    this.getKind = getKind;

    function getKind() {
        return this.figureKind;
    }
    this.getImage = getImage;

    function getImage() {
        return this.image;
    }

    this.getPlayer = getPlayer;

    function getPlayer() {
        return this.player;
    }
    this.removeHidden = removeHidden;

    function removeHidden() {
        this.hidden = false;
        this.image = figureKind.getImage(player);

        if (figureKind == trapF)
            this.image = figureKind.getImage(1);
    }
}

console.log(new field(2,flagF) == new field(2,flagF));

This returns false although the two objects should be the same, no?

If someone could tell me why this doesn't work AND how to make it work (cause I need this comparison for my game) I would be really thankful!

Answer

The objects are not the same in the mind of JavaScript even if they contain the same elements. Each separately-created object is a unique storage container, and so == will return false.

You will need to compare each property of the two objects if you want to see if they contain the same properties.