underscore/clone()

解説 配列やオブジェクトをコピー

_.clone(Array)

sample1code
(function(){
  let s1Obj = {
  	name: "aaa",
  	score: 88,
  	color: "blue"
  }
  var s1 = _.clone(s1Obj);
  console.log(s1);
})();//{ name: "aaa", score: 88, color: "blue" }