CODE EXAMPLE FOR JAVASCRIPT

object to string js

let arr = [
    "{"Machine Name":"Armature Assy 1","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 2","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 3","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 4","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 5","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 6","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 7","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 8","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 9","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 10","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 11","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 12","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 13","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 14","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 15","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 16","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 17","STS AM":5.5,"Waiting Time AM":0,"Breakdown AM":24.3,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 18","STS AM":1.1,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 19","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 20","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 21","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 22","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 23","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 24","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 27","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 28","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 29","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 30","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 31","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}",
    "{"Machine Name":"Armature Assy 99","STS AM":0,"Waiting Time AM":0,"Breakdown AM":0,"STS PM":0,"Waiting Time PM":0,"Breakdown PM":0}"
]
console.log(arr.map(x=> JSON.parse(x)))