Add index to foreach callback

Author: electrikmilk

src/components/Repeat.js

@@ -14,9 +14,11 @@ class ForEachElement extends Element {
  super(element);
  this.element = element;
  this.elements = [];
+ let index = 0;
  for (let key in items) {
  const value = items[key];
- this.elements.push(...callback(value, key));
+ this.elements.push(...callback(value, key, index));
+ index++;
  }
  }
 }