var str = "[ {a:1 , d:3} , {b:2} , {c:3} ]"
// console.log(typeof m,99)
// let s= JSON.stringify(m)
// console.log(s,88)
// let t = JSON.parse(s)
// console.log(w,77)
let m =JSON.parse(str.replace(/(\w+):/g, '"$1":'))
console.log( m instanceof Array,88)