javascript - 从数组中删除最后一项(Remove last item from array)

Question

I have the following array.

(我有以下数组。)

var arr = [1,0,2];

I would like to remove the last element ie 2.

(我想删除最后一个元素，即2。)

I used arr.slice(-1);

(我用了arr.slice(-1);)

but it doesn't remove the value.

(但不会删除该值。)

  ask by Prithviraj Mitra translate from so

Answer 1

Array.prototype.pop() by JavaScript convention.

(Array.prototype.pop（）通过JavaScript约定。)

let fruit = ['apple', 'orange', 'banana', 'tomato'];
let popped = fruit.pop();

console.log(popped); // "tomato"
console.log(fruit); // ["apple", "orange", "banana"]