How to use destructuring assignment to define enumerations in ES6?

Question

You can use destructuring assignment to define enumerations in ES6 as follows:

var [red, green, blue] = [0, 1, 2];
         


        

Answer 1

Note, each of the below prospective approaches could probably be improved.

The variables appear to be global at Question. You can create an array of strings referencing the variable which should be created, define the variable from the element of the array

// not technically destructuring, though achieves same result;
// that is, setting variables globally
for (var prop of (props = ["a", "b", "c", "d"])) {
  // set identifier globally
  self[prop] = props.indexOf(prop); // set a value for each `prop`
}
// delete `prop`, `props`
prop = props = void 0;

console.log(a, b, c, d);

Other approaches

using object destructuring

var {
  red, blue, green
} = (function(data, props) {
      for (var prop of Object.keys(props)) {
        data[props[prop]] = props.indexOf(props[prop]); // or some other value
      };
      return data
    }({}, ["red", "blue", "green"]));

console.log(red, blue, green);

using a list of variables to be

var props = ["red", "blue", "green"]; // list of variables to be
var [red, blue, green] = props.map((v, k) => k);
console.log(red, blue, green, "window[\"red\"]:", window[props[0]]);