How create new array from looping value date from object?

try this out

 let sastojci = [];

 for (let i = 1, j = 0; i < 16; i++, j++) {
        sastojci[j] = koktelData.strIngredient + i
 
 }

 console.log(sastojci);

If coktelData.strIngredient is an array then it should start at 0.

And this is how it should work. If not then contact me and add koktelData.strIngredient to the question so I can test it.

If koktelData.strIngredient is an String then pls show format

It seems like you want to loop through an object's properties (koktelData.strIngredient1 to koktelData.strIngredient15) and create an array containing their values. You can achieve this using a for loop and dynamic property access. Here's the corrected code:

var sastojci = [];
for (let i = 1; i <= 15; i++) {
  var sastojak_niz = koktelData["strIngredient" + i];
  sastojci.push(sastojak_niz);
}
console.log(sastojci);

In this code:

1. We initialize an empty array sastojci to store the values.
2. We use a for loop to iterate from 1 to 15.
3. Inside the loop, we dynamically access the object properties using bracket notation like koktelData["strIngredient" + i]. This allows us to access koktelData.strIngredient1 through koktelData.strIngredient15.
4. We push each value into the sastojci array.
5. Finally, we log the sastojci array to the console, which should contain all the values from koktelData.strIngredient1 to koktelData.strIngredient15.