Challenge: Solution Review

let configure = null;
class ConfigureVals{
    constructor(initvalues){
        this.xpoint = initvalues.xpoint || 0;
        this.ypoint = initvalues.ypoint || 0;
        this.shape = initvalues.shape || null;
    }
    static getConfiguration(initvalues){
        if (!configure) {
            configure = new ConfigureVals(initvalues)
            }
            return configure;
    }
}
var configureObj1 = ConfigureVals.getConfiguration({ "xpoint": 8, "ypoint" : 9, "shape" : "rectangle" });
console.log(configureObj1);
var configureObj2 = ConfigureVals.getConfiguration({ "xpoint": 2, "ypoint": 4, "shape" : "circle" });
console.log(configureObj2);