Converting JavaScript object with numeric keys into array

Question

I have an object like this coming back as a JSON response from the server     0   1   1   2   2   3   3   4     I want to convert it into a JavaScript array like this     1   2   3   4     Is there a best way to do this  Wherever I am reading  people are using complex logic using loops  So are there alternative methods to doing this

User · Answer

var obj     0   1   1   2   2   3   3   4     var vals   Object values obj    console log vals       1    2    3    4     Another alternative to the question  var vals   Object values JSON parse obj      where json needs to be parsed

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There is nothing like a  JSON object  - JSON is a serialization notation   If you want to transform your javascript object to a javascript array  either you write your own loop  which would not be that complex    or you rely on underscore js   toArray   method   var obj     0   1   1   2   2   3   3   4    var yourArray     obj  toArray

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You can use Object assign   with an empty array literal    as the target    x000D   x000D  const input     x000D     0    1   x000D     1    2   x000D     2    3   x000D     3    4  x000D    x000D   x000D  const output   Object assign     input  x000D   x000D  console log output  x000D   x000D   x000D    If you check the polyfill  Object assign target     sources  just copies all the enumerable own properties from the source objects to a target object  If the target is an array  it will add the numerical keys to the array literal and return that target array object

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Nothing hard here  Loop over your object elements and assign them to the array  var obj     0   1   1   2   2   3   3   4    var arr       for  elem in obj       arr push obj elem        http   jsfiddle net Qq2aM

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var data              data       jdata safe       parse through js       var i   0         for  i 0 i lt data length i              data i    data i  value

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Using raw javascript  suppose you have   var j    0   1   1   2   2   3   3   4      You could get the values with   Object keys j  map function      return j          Output     1    2    3    4

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It s actually very straight forward with jQuery s   map  var arr     map obj  function el    return el       FIDDLE  and almost as easy without jQuery as well  converting the keys to an array and then mapping back the values with Array map  var arr   Object keys obj  map function k    return obj k        FIDDLE  That s assuming it s already parsed as a javascript object  and isn t actually JSON  which is a string format  in that case a run through JSON parse would be necessary as well   In ES2015 there s Object values to the rescue  which makes this a breeze  var arr   Object values obj

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Try this   var newArr         each JSONObject results bindings  function i  obj        newArr push  obj value

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Assuming your have a value like the following  var obj     0   1   1   2   2   3   3   4      Then you can turn this into a javascript array using the following  var arr       json   JSON stringify eval       obj            convert to json string arr     parseJSON json     convert to javascript array   This works for converting json into multi-diminsional javascript arrays as well     None of the other methods on this page seemed to work completely for me when working with php json-encoded strings except the method I am mentioning herein

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You simply do it like  var data          0    1        1    2        2    3        3    4     var arr       for  var prop in data        arr push data prop      console log arr     DEMO

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You can convert json Object into Array  amp  String using PHP    data    resultList     id   1839   displayName   Analytics   subLine        id   1015   displayName   Automation   subLine        id   1084   displayName   Aviation   subLine        id   554   displayName   Apparel   subLine        id   875   displayName   Aerospace   subLine        id   1990   displayName   Account Reconciliation   subLine        id   3657   displayName   Android   subLine        id   1262   displayName   Apache   subLine        id   1440   displayName   Acting   subLine        id   710   displayName   Aircraft   subLine        id   12187   displayName   AAC   subLine         id   20365   displayName   AAT   subLine         id   7849   displayName   AAP   subLine         id   20511   displayName   AACR2   subLine         id   28585   displayName   AASHTO   subLine         id   45191   displayName   AAMS   subLine            b json decode  data     i 0  while  b- gt   resultList    i         print r  b- gt   resultList    i - gt   displayName         echo   lt br   gt         i

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This is best solution  I think so   Object keys obj  map function k  return  key  k  value  obj k

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var json      0   1   1   2   2   3   3   4      var parsed   JSON parse json    var arr        for var x in parsed     arr push parsed x        Hope this is what you re after

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x000D   x000D  var JsonObj     x000D     0    1   x000D     1    2   x000D     2    3   x000D     3    4  x000D     x000D   x000D  var array       x000D  for  var i in JsonObj    x000D    if  JsonObj hasOwnProperty i   amp  amp   isNaN  i     x000D      array  i    JsonObj i   x000D      x000D    x000D   x000D  console log array  x000D   x000D   x000D    DEMO

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Not sure what I am missing here but simply trying the below code does the work  Am I missing anything here   https   jsfiddle net vatsalpande w3ew5bhq     document  ready function     var json         code    1        data            0      id   1   score   44         1      id   1   score   44                 createUpdatedJson       function createUpdatedJson         var updatedJson   json       updatedJson data    updatedJson data            jsondata   html JSON stringify updatedJson          console log JSON stringify updatedJson

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Here is an example of how you could get an array of objects and then sort the array     function osort obj          map the object to an array  key  obj key       return Object keys obj  map function key    return  key  obj key      sort        function  keya  keyb             sort from largest to smallest            return keyb 1  - keya 1

[javascript] Converting JavaScript object with numeric keys into array

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