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Sort function with undefined value

I have an array of object like below:

 var stores = [
      {
        "name": "store3",
        "ditance": 8
      },
      {
        "name": "Store5",
        "distance": 7,
        "web": {
          "validateAttributes": {
            "isSelectedDispostionSupported": true,
            "isFutureOrderPossible": false
          }
        }
      },
      {
        "name": "Store1",
        "distance": 12,
        "web": {
          "validateAttributes": {
            "isSelectedDispostionSupported": true,
            "isOpen": true
          }
        }
      },
      {
        "name": "store2",
        "distance": 13,
        "web": {
          "validateAttributes": {
            "isSelectedDispostionSupported": true,
            "isOpen": true
          }
        }
      }
    ]

Expected Result to be sort based on isopen and distance

[
  {
    "name": "Store1",
    "distance": 12,
    "web": {
      "validateAttributes": {
        "isSelectedDispostionSupported": true,
        "isOpen": true
      }
    }
  },
  {
    "name": "store2",
    "distance": 13,
    "web": {
      "validateAttributes": {
        "isSelectedDispostionSupported": true,
        "isOpen": true
      }
    }
  },
  {
    "name": "Store5",
    "distance": 7,
    "web": {
      "validateAttributes": {
        "isSelectedDispostionSupported": true,
        "isFutureOrderPossible": false
      }
    }
  },
  {
    "name": "store3",
    "ditance": 8
  }
]

Need to sort an array based on isOpen and distance .The challenge is some object have web property and some object don't have. Even if web available sometimes isOpen won't their. I have tried the below approch it's not working

const sorter = (a, b) => {
                if (a.web) {
                  if (a.web.validateAttributes) {
                    if (a.web.validateAttributes.isOpen) {
                      return 1;
                    } else if (b.web.validateAttributes.isOpen) {
                      return -1;
                    } else {
                      return 1;
                    };
                  } else {
                    return 1;
                  }
                 
                } else {
                  return 1;
                }
              };
  stores.sort(sorter);

about 4 years ago · Juan Pablo Isaza

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Answer 1 · 2022-07-08T22:05:08.154Z

Try this

const stores = [{"name":"store3","ditance":8},{"name":"Store5","distance":7,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isFutureOrderPossible":false}}},{"name":"Store1","distance":12,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}},{"name":"store2","distance":13,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}}]

   const sorter = (a,b)=> {
      if(!b.web) {
          return -1;
      }
      else if(!b.web.validateAttributes) {
        return -1;
      }
      else if(!b.web.validateAttributes.isOpen) {
        return -1;
      }
      return (a.distance - b.distance)
   }
   console.log(stores.sort(sorter))

Answer 2 · 2022-07-08T22:05:08.162Z

Try this.

const stores = [{"name":"store3","ditance":8},{"name":"Store5","distance":7,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isFutureOrderPossible":false}}},{"name":"Store1","distance":12,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}},{"name":"store2","distance":13,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}}]

const sorted = stores.slice();

sorted.sort((a, b) => {
    if (!a.web || !b.web) {
        return -1;
    }
    if (!a.web.validateAttributes || !b.web.validateAttributes) {
        return -1;
    }
    const x = a.web.validateAttributes.isOpen || false;
    const y = b.web.validateAttributes.isOpen || false;

    return (x === y) ? a.distance - b.distance : -1;
})
console.log(sorted)

.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 3 · 2022-07-08T22:05:08.170Z

I see 2 problems.

typo at the first item "ditance": 8
Your sorting function. Here is my logic. Firstly, check both are Opening or Closing, then compare distance. Else just simple compare the state open/close

var stores = [{"name":"store3","distance":8},{"name":"Store5","distance":7,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isFutureOrderPossible":false}}},{"name":"Store1","distance":12,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}},{"name":"store2","distance":13,"web":{"validateAttributes":{"isSelectedDispostionSupported":true,"isOpen":true}}}];
    
stores.sort((a, b) => {
  if (a.web?.validateAttributes?.isOpen && b.web?.validateAttributes?.isOpen || !a.web?.validateAttributes?.isOpen && !b.web?.validateAttributes?.isOpen) {
    return a.distance - b.distance;
  }
  if (a.web?.validateAttributes?.isOpen) {
    return -1;
  }
  return 1;
})

console.log(stores);

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Sort function with undefined value

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