Javascript: moving elements in an array -

var array = ["object1","object2","object3","object4","object5"]; var copy = array.slice(); copy.foreach(function(value) {  if(value === "object3"){   value = "newobject3"   } });  console.log(copy ); 

if want move object3 in array first index, after assigned new value. how do it? , whats effective , less time? libraries lodash can used.

var array = ["object1", "object2", "object3", "object4", "object5"];  var copy = array.slice();  copy.foreach(function(value, index, thearray) {    if (value === "object3") {      thearray[index] = thearray[0];      thearray[0] = "newobject3";    }  });    console.log(copy);