How can i sort array of objects based on numbers and spefific letters?-CodePudding

i have this array


let arr = [
    {
        "time": "3",
        "wholeObj": "abc mo sa 3 Y",
        "mapEventValue": "Y"
    },
    {
        "time": "3",
        "wholeObj": "abc a 3 G",
        "mapEventValue": "G"
    },
    {
        "time": "3",
        "wholeObj": "cba d 3 S f",
        "mapEventValue": "S"
    },
    {
        "time": "3",
        "wholeObj": "cba z 3 R",
        "mapEventValue": "R"
    }
]

i need to sort the array FIRST based on the time value and after that if the time values are equal i need to sort them based on mapEventValue in following order G Y R S

So in my case all objects are having equal time values 3 I can't find a way to sort them by the mapEventValue property

what i tried

Until now i just managed to sort them by time value

let sorted = arr.sort((a,b) => a.time - b.time)

So my output at the end should be


let arr = [
    {
        "time": "3",
        "wholeObj": "abc a 3 G",
        "mapEventValue": "G"
    },
    {
        "time": "3",
        "wholeObj": "abc mo sa 3 Y",
        "mapEventValue": "Y"
    },
    {
        "time": "3",
        "wholeObj": "cba z 3 R",
        "mapEventValue": "R"
    },
    {
        "time": "3",
        "wholeObj": "cba d 3 S f",
        "mapEventValue": "S"
    },
]

CodePudding user response：

So only sort by time if time differs, otherwise sort by the index of your desired sort order.

let sortOrder = 'GYRS';
let arr = [
    {
        "time": "3",
        "wholeObj": "abc mo sa 3 Y",
        "mapEventValue": "Y"
    },
    {
        "time": "3",
        "wholeObj": "abc a 3 G",
        "mapEventValue": "G"
    },
    {
        "time": "3",
        "wholeObj": "cba d 3 S f",
        "mapEventValue": "S"
    },
    {
        "time": "3",
        "wholeObj": "cba z 3 R",
        "mapEventValue": "R"
    }
];

let sorted = arr.sort((a,b) => {
  if (a.time != b.time) {
    return a.time - b.time;
  } else {
    return sortOrder.indexOf(a.mapEventValue) - sortOrder.indexOf(b.mapEventValue);
  }
});
console.log(sorted);