在Javascript中在数组末尾添加元素
这可以使用push方法完成。例如，
let veggies = ["Onion", "Raddish"];
veggies.push("Cabbage");
console.log(veggies);这将给出输出-
["Onion", "Raddish", "Cabbage"]
您还可以使用它同时推送多个项目，因为它支持可变数量的参数。例如，
let veggies = ["Onion", "Raddish"];
veggies.push("Cabbage", "Carrot", "Broccoli");
console.log(veggies);这将给出输出-
["Onion", "Raddish", "Cabbage", "Carrot", "Broccoli"]