var cars = { "c1":"BMW", "c2":"Volvo", "c3":["Saab","jas"], "c4":{"Ford":"cdsnj", "Ford1":"cdsnj", "Ford2":"cdsnj"} "myMethod" = () =>{ console.log("eFNJVSL") }, };Reemplace el = con :
var cars = { "c1":"BMW", "c2":"Volvo", "c3":["Saab","jas"], "c4":{"Ford":"cdsnj", "Ford1":"cdsnj", "Ford2":"cdsnj"}, "myMethod" : () =>{ console.log("eFNJVSL") }, };