Convert array to key/value array

Question

Im trying to convert a "simple" array that looks like this:

arr = [143.17, 174.45, 55.3]

To an array of objects in this format:

 Today = new Date();
    newArr =   [ 
        { key: Today, value: 143.17 },
        { key: Today + 1, value: 174.45 },
        { key: Today + 2, value: 55.3}]

Im hoping to create a function to which I can pass the original array and have it return the new one:

objArr = function CreateObjArr(arr){


 return newArr
}

Thank you

I don't really know where to start. But you are right. I could try to convert a single value into an object first. — RogerDore
– RogerDore, Commented Nov 17, 2015 at 20:00
what you want is not a key/value structure. the key/value is so organized, that the key is the access property of an object for a value. eg { day1: 1.2, day2: 1.1, day3: 1.4 }. — Nina Scholz
– Nina Scholz, Commented Nov 17, 2015 at 20:21

Sebastian Simon · Accepted Answer · 2015-11-17 20:04:55Z

2

You can use the Array.prototype.map function

var newArr = arr.map(function(v, i) {
  return { key: Today + i, value: v };
});

edited Nov 17, 2015 at 20:04

Sebastian Simon

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answered Nov 17, 2015 at 19:59

aeskreis

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