sort object properties and JSON.stringify

Question

My application has a large array of objects, which I stringify and save them to the disk. Unfortunately, when the objects in the array are manipulated, and sometimes replac

Answer 1

I made a function to sort object, and with callback .. which actually create a new object

function sortObj( obj , callback ) {

    var r = [] ;

    for ( var i in obj ){
        if ( obj.hasOwnProperty( i ) ) {
             r.push( { key: i , value : obj[i] } );
        }
    }

    return r.sort( callback ).reduce( function( obj , n ){
        obj[ n.key ] = n.value ;
        return obj;
    },{});
}

and call it with object .

var obj = {
    name : "anu",
    os : "windows",
    value : 'msio',
};

var result = sortObj( obj , function( a, b ){
    return a.key < b.key  ;    
});

JSON.stringify( result )

which prints {"value":"msio","os":"windows","name":"anu"} , and for sorting with value .

var result = sortObj( obj , function( a, b ){
    return a.value < b.value  ;    
});

JSON.stringify( result )

which prints {"os":"windows","value":"msio","name":"anu"}