expand and reorder an array of objects

Question

i have and array

    reservation1:[
      {name:"8:30",active:true,dayindex:1},
      {name:"jad",active:true,dayindex:3},
    ]

i need to expand the array to 9 and fill it with object with name null active false dayindex: between 0 and 10 in order the output needed is

  output =[
   {name:"",active:false,dayindex:0}
   {name:"8:30",active:true,dayindex:1}

    ...

i tried this for expanding

it worked for expanding but i couldnt reorder it as i wanted

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Sunny R Gupta
– Sunny R Gupta

2017-11-02 14:22:28 +00:00
Commented Nov 2, 2017 at 14:22 — Sunny R Gupta
– Sunny R Gupta, Commented Nov 2, 2017 at 14:22
Yh please sir ...

jadlmir
– jadlmir

2017-11-02 14:24:27 +00:00
Commented Nov 2, 2017 at 14:24 — jadlmir
– jadlmir, Commented Nov 2, 2017 at 14:24

Faly · Accepted Answer · 2017-11-02 14:42:28Z

1

You can sort you array after adding others elements:

var reservation = [
    {name:"8:30",active:true,dayindex:1},
    {name:"jad",active:true,dayindex:3},
    {name:"tony",active:true,dayindex:4},
    {name:"",active:false,dayindex:6}
];
var availabeDayIndex = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].filter(el => !reservation.map(it => it.dayindex).includes(el));
var sortField = 'dayindex';
reservation = [...reservation, ...Array.from(Array(9 - reservation.length), (val, key) => ({name: null, active: false, dayindex: availabeDayIndex[key]}))].sort((a, b) => a[sortField] - b[sortField]);
console.log(reservation);

edited Nov 2, 2017 at 14:42

answered Nov 2, 2017 at 14:27

Faly

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2 Comments

jadlmir Over a year ago

dayindex to to be a variable it is changeable

jadlmir Over a year ago

dayindex will vary from 0 to 10 filling the required position here dayindex need to fill {0 2 5 7 8 9 }

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