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Created April 22, 2019 17:26
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Revisions

  1. @umidjons umidjons revised this gist Mar 18, 2014. 1 changed file with 30 additions and 0 deletions.
    30 changes: 30 additions & 0 deletions sort-object-properties-by-value.md
    View file
    Original file line number Diff line number Diff line change
    @@ -65,3 +65,33 @@ Example:
    var sortedCities=sortProperties(cities);
    console.log(sortedCities); // [[Andijan, 120], [Tashkent, 447], [Karakalpakiya, 900]]
    ```
    ###Improved version with additional parameter to set sort type (numeric or text)
    ```js
    /**
    * Sort object properties (only own properties will be sorted).
    * @param {object} obj object to sort properties
    * @param {bool} isNumericSort true - sort object properties as numeric value, false - sort as string value.
    * @returns {Array} array of items in [[key,value],[key,value],...] format.
    */
    function sortProperties(obj, isNumericSort)
    {
    isNumericSort=isNumericSort || false; // by default text sort
    var sortable=[];
    for(var key in obj)
    if(obj.hasOwnProperty(key))
    sortable.push([key, obj[key]]);
    if(isNumericSort)
    sortable.sort(function(a, b)
    {
    return a[1]-b[1];
    });
    else
    sortable.sort(function(a, b)
    {
    var x=a[1].toLowerCase(),
    y=b[1].toLowerCase();
    return x<y ? -1 : x>y ? 1 : 0;
    });
    return sortable; // array in format [ [ key1, val1 ], [ key2, val2 ], ... ]
    }
    ```
  2. @umidjons umidjons created this gist Mar 18, 2014.
    67 changes: 67 additions & 0 deletions sort-object-properties-by-value.md
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,67 @@
    ### Sort object properties by value (values are text)
    I have following object:
    ```js
    var cities={10:'Tashkent', 14:'Karakalpakiya', 16:'Andijan'};
    ```
    I want sort it by city names, so after sort it should be:
    ```js
    var cities={16:'Andijan', 14:'Karakalpakiya', 10:'Tashkent'};
    ```
    But I can't sort object properties, instead can convert object into array, then sort items.
    ```js
    function sortProperties(obj)
    {
    // convert object into array
    var sortable=[];
    for(var key in obj)
    if(obj.hasOwnProperty(key))
    sortable.push([key, obj[key]]); // each item is an array in format [key, value]

    // sort items by value
    sortable.sort(function(a, b)
    {
    var x=a[1].toLowerCase(),
    y=b[1].toLowerCase();
    return x<y ? -1 : x>y ? 1 : 0;
    });
    return sortable; // array in format [ [ key1, val1 ], [ key2, val2 ], ... ]
    }
    ```

    Example:
    ```js
    var sortedCities=sortProperties(cities);
    console.log(sortedCities); // [[16, 'Andijan'], [14, 'Karakalpakiya'], [10, 'Tashkent']]
    ```
    ### Sort object properties by value (values are numbers)
    I have following object:
    ```js
    var cities={Tashkent:447, Karakalpakiya:900, Andijan:120};
    ```
    I want sort it by city rating, so after sort it should be:
    ```js
    var cities={Andijan:120, Tashkent:447, Karakalpakiya:900};
    ```
    But again I can't sort object properties, instead can convert object into array, then sort items.
    ```js
    function sortProperties(obj)
    {
    // convert object into array
    var sortable=[];
    for(var key in obj)
    if(obj.hasOwnProperty(key))
    sortable.push([key, obj[key]]); // each item is an array in format [key, value]

    // sort items by value
    sortable.sort(function(a, b)
    {
    return a[1]-b[1]; // compare numbers
    });
    return sortable; // array in format [ [ key1, val1 ], [ key2, val2 ], ... ]
    }
    ```
    Example:
    ```js
    var sortedCities=sortProperties(cities);
    console.log(sortedCities); // [[Andijan, 120], [Tashkent, 447], [Karakalpakiya, 900]]
    ```