Returning Subset Of Properties From An Array Of Objects

I have an array of objects like var array = [{date:'01/01/2017',value1:200,value2:300,value3:400}] I am trying to get a subset of the object properties like var var newArray = [

Solution 1:

You should use map for this, you were almost there. This will sort you out:

array.map(function(item){ return [item.date,item.value1]});

Solution 2:

You need to put the values in an array & map method will do rest of the work

var array = [{
  date: '01/01/2017',
  value1: 200,
  value2: 300,
  value3: 400
}, {
  date: '01/01/3017',
  value1: 500,
  value2: 300,
  value3: 400
}];
var m = array.map(function(item) {
  return [item.date, item.value1]
})

console.log(m)

[['01/01/2017',200],['01/01/2017',200]]