js splice()方法

以下是关于JavaScript中splice()方法的介绍和演示：

1. 删除数组中的元素并返回被删除的元素[^1]：

let colors = ["red", "green", "blue"];
var removed = colors.splice(1, 2, "pink");
console.log(colors); // 输出：["red", "pink"]
console.log(removed); // 输出：["green", "blue"]

2. 删除数组中的元素[^2]：

let array = [0, 1, 2, 3, 4, 5, 6];
console.log("原数组为：" + array);
let arrBack = array.splice(2, 1);
console.log("array：" + array);
console.log("arrBack：" + arrBack);