如何使用 LODASH 从数组中删除元素并降低排名

Question

I am working in Angular2. I have an array like below:

rank   |   book name
---------------------
  1    |   maths
  2    |   physics
  3    |   english
  4    |   hindi

Now i want to remove an Item, Let i am removing rank 1 and book name is maths

Which must be remove the maths row and adjust the ranks after that element. I want the result will be like this:

rank   |   book name
---------------------
  1    |   physics
  2    |   english
  3    |   hindi

What to do Remove and also decrease the rank simultaneously using lodash in angular2?

Answer 1

Without lodash

var array = ["Maths", "Physics", "English", "Hindi"];
const result = array.filter(array => array !== "Maths");
var object = {};
var i = 0;
for (rank in result) {
i++
object[i] = result[rank]
}
console.log(object);