// 定义一个空数组
// let mousePos = [];
// 定义一个空数组
let mousePos = new Array();

// 向数组添加元素 output
mousePos.push([100, 50, 1586998787]);
console.log(mousePos);

// 删除并返回一个元素
console.log(mousePos.pop());

// 数组转字符串
let mousePos1 = new Array();
mousePos1.push([100, 50, 1586998787]);
mousePos1.push([101, 50, 1586998787]);
mousePos1.push([102, 50, 1586998787]);
mousePos1.push([103, 50, 1586998787]);
mousePos1.push([104, 50, 1586998787]);
console.log(mousePos1.join(","));

// 数组转字符串-2
let mousePos2 = new Array();
mousePos2.push([100, 50, 1586998787]);
mousePos2.push([101, 50, 1586998787]);
mousePos2.push([102, 50, 1586998787]);
mousePos2.push([103, 50, 1586998787]);
mousePos2.push([104, 50, 1586998787]);
console.log(mousePos2.join(","));