array-includes-polyfill/src/polyfills/copy.js

Exposing a richer set of Array features for JavaScript

class Copy{
  copy(arr){
    if(arr){
      this.map((data)=>{
        arr.push(data);
      });
    }else{
      var x = [];
      this.map((data)=>{
        x.push(data);
      });
      return x;
    }
  }
}

module.exports = Copy;