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javascript sort array by multiple properties

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Cruel Chinchilla answered on October 13, 2020 Popularity 10/10 Helpfulness 1/10

answer javascript sort array by multiple properties

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javascript sort array by multiple properties

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var sort_by;

(function() {
    // utility functions
    var default_cmp = function(a, b) {
            if (a == b) return 0;
            return a < b ? -1 : 1;
        },
        getCmpFunc = function(primer, reverse) {
            var dfc = default_cmp, // closer in scope
                cmp = default_cmp;
            if (primer) {
                cmp = function(a, b) {
                    return dfc(primer(a), primer(b));
                };
            }
            if (reverse) {
                return function(a, b) {
                    return -1 * cmp(a, b);
                };
            }
            return cmp;
        };

    // actual implementation
    sort_by = function() {
        var fields = [],
            n_fields = arguments.length,
            field, name, reverse, cmp;

        // preprocess sorting options
        for (var i = 0; i < n_fields; i++) {
            field = arguments[i];
            if (typeof field === 'string') {
                name = field;
                cmp = default_cmp;
            }
            else {
                name = field.name;
                cmp = getCmpFunc(field.primer, field.reverse);
            }
            fields.push({
                name: name,
                cmp: cmp
            });
        }

        // final comparison function
        return function(A, B) {
            var a, b, name, result;
            for (var i = 0; i < n_fields; i++) {
                result = 0;
                field = fields[i];
                name = field.name;

                result = field.cmp(A[name], B[name]);
                if (result !== 0) break;
            }
            return result;
        }
    }
}());

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: javascript properties

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Contributed on Oct 13 2020

Cruel Chinchilla

0 Answers Avg Quality 2/10

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array sort by two properties

Comment

console.log(fruits.sort((a, b)=> {
  if (a.colA === b.colA){
    return a.colB < b.colB ? -1 : 1
  } else {
    return a.colA < b.colA ? -1 : 1
  }
}))

/*
> [{colA: "apple", colB: "granny smith"},
  {colA: "apple", colB: "red delicious"},
  {colA: "orange", colB: "blood"},
  {colA: "orange", colB: "clementine"},
  {colA: "orange", colB: "navel"},
  {colA": "pear", colB: "green anjou"},
  {colA: "pear", colB: "red anjou"}]
  */

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: levelup.gitconnected.com

Tags: javascript j

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Contributed on Jun 06 2022

Worried Wolverine

0 Answers Avg Quality 2/10

typescript .sort array by multiple properties

Comment

var data = [{ h_id: "3", city: "Dallas", state: "TX", zip: "75201", price: "162500" }, { h_id: "4", city: "Bevery Hills", state: "CA", zip: "90210", price: "319250" }, { h_id: "6", city: "Dallas", state: "TX", zip: "75000", price: "556699" }, { h_id: "5", city: "New York", state: "NY", zip: "00010", price: "962500" }];

data.sort(function (a, b) {
    return a.city.localeCompare(b.city) || b.price - a.price;
});

console.log(data);

// OR in es6

data.sort((a, b) => a.city.localeCompare(b.city) || b.price - a.price);

Popularity 7/10 Helpfulness 3/10 Language typescript

Source: stackoverflow.com

Tags: properties typescript t

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Contributed on Aug 12 2022

Ethan Sheory

0 Answers Avg Quality 2/10

javascript sort array of objects multiple fields

Comment

array.sort(function(a,b){
  let i = 0, result = 0;
  while(i < sortBy.length && result === 0) {
    result = sortBy[i].direction*(a[ sortBy[i].prop ].toString() < b[ sortBy[i].prop ].toString() ? -1 : (a[ sortBy[i].prop ].toString() > b[ sortBy[i].prop ].toString() ? 1 : 0));
    i++;
  }
  return result;
})

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: bithacker.dev

Tags: javascript j

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Contributed on Mar 02 2021

Stupid Squirrel

0 Answers Avg Quality 2/10

javascript sort array by multiple properties

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