How to create an array of object literals in a loop

Question

I need to create an array of object literals like this   var myColumnDefs          key  label   sortable true  resizeable true        key  notes   sortable true resizeable true           In a loop like this   for  var i   0  i  lt  oFullResponse results length  i          console log oFullResponse results i  label       The value of key should be results i  label in each element of the array

User · Answer

This is what Array map are good at  var arr   oFullResponse results map obj   gt         key  obj label      sortable  true      resizeable  true

User · Answer

RaYell s answer is good - it answers your question   It seems to me though that you should really be creating an object keyed by labels with sub-objects as values   var columns       for  var i   0  i  lt  oFullResponse results length  i          var key   oFullResponse results i  label      columns key              sortable  true          resizeable  true              Now you can access column info like this   columns  notes   resizeable    The above approach should be much faster and idiomatic than searching the entire object array for a key for each access

User · Answer

I d create the array and then append the object literals to it   var myColumnDefs        for   var i 0   i  lt  oFullResponse results length  i           console log oFullResponse results i  label       myColumnDefs myColumnDefs length     key oFullResponse results i  label  sortable true  resizeable true

User · Answer

This will work    var myColumnDefs   new Object     for  var i   0  i  lt  oFullResponse results length  i           myColumnDefs i      key oFullResponse results i  label  sortable true  resizeable true

User · Answer

You can do something like that in ES6   new Array 10  fill   map  e i    gt       return  idx  i

User · Answer

If you want to go even further than  tetra with ES6 you can use the Object spread syntax and do something like this   let john         firstName   John       lastName   Doe       let people   new Array 10  fill   map  e  i    gt       john  id  i

User · Answer

In the same idea of Nick Riggs but I create a constructor  and a push a new object in the array by using it  It avoid the repetition of the keys of the class   var arr       var columnDefs   function key  sortable  resizeable       this key   key       this sortable   sortable       this resizeable   resizeable          for  var i   0  i  lt  len  i          arr push  new columnDefs oFullResponse results i  label true true

User · Answer

var myColumnDefs   new Array     for  var i   0  i  lt  oFullResponse results length  i          myColumnDefs push  key oFullResponse results i  label  sortable true  resizeable true

User · Answer

var arr       var len   oFullResponse results length  for  var i   0  i  lt  len  i          arr push           key  oFullResponse results i  label          sortable  true          resizeable  true

[javascript] How to create an array of object literals in a loop?

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