events.js spliceOne is slower than splice #14081

// About 1.5x faster than the two-arg version of Array#splice().
function spliceOne(list, index) {
  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
    list[i] = list[k];
  list.pop();
}

let mArr01 = [];
let mArr02 = [];

let length = 10000;

let randData;

for (let i = 0; i < length; i++) {

    randData = Math.random();
    mArr01.push(randData);
    mArr02.push(randData);
}

console.time('Array splice');
for (let j = 0; j < 1000; j++) {
    mArr01.splice(1000 - j, 1);
}
console.timeEnd('Array splice');

console.time('spliceOne splice');
for (let j = 0; j < 1000; j++) {
    spliceOne(mArr02, 1000 - j);
}
console.timeEnd('spliceOne splice');