前言
活不多说，自己平时搜集的干货函数奉上。 干货函数 视频全屏
代码语言：javascript复制 // 全屏
function fullScreen(el) {
const isFullscreen =
document.fullScreen ||
document.mozFullScreen ||
document.webkitIsFullScreen;
if (!isFullscreen) {
//进入全屏,多重短路表达式
(el.requestFullscreen && el.requestFullscreen()) ||
(el.mozRequestFullScreen && el.mozRequestFullScreen()) ||
(el.webkitRequestFullscreen && el.webkitRequestFullscreen()) ||
(el.msRequestFullscreen && el.msRequestFullscreen());
} else {
//退出全屏,三目运算符
document.exitFullscreen
? document.exitFullscreen()
: document.mozCancelFullScreen
? document.mozCancelFullScreen()
: document.webkitExitFullscreen
? document.webkitExitFullscreen()
: "";
}
}
1234567891011121314151617181920212223找出数字在数组中下一个相邻的元素
let i = “”; let rr = [];
const name = (n, arr1)=>{ let num = Number(n); for (let i = 0; i < arr1.length; i ) { const element = arr1[i]; if (element != num) { rr.push(num–); } } return rr.find((el) => { let newel = String(el); return arr1.includes(newel); })}
let arr = [“2”, “4”, “6”, “8”, “10”, “12”, “14”, “16”, “18”, “20”, “22”, “24”, “27”, “30”, “33”, “36”, “42”, “48”, “54”, “60”] console.log(name(‘5’,arr)); //4
格式化时间
/**
- @param {number} time
- @param {string} option
- @returns {string} */ function formatTime(time, option) { if ((’’ time).length === 10) { time = parseInt(time) * 1000 } else { time = time } const d = new Date(time) const now = Date.now()
const diff = (now - d) / 1000
if (diff < 30) { return ‘刚刚’ } else if (diff < 3600) { // less 1 hour return Math.ceil(diff / 60) ‘分钟前’ } else if (diff < 3600 * 24) { return Math.ceil(diff / 3600) ‘小时前’ } else if (diff < 3600 * 24 * 2) { return ‘1天前’ } if (option) { return parseTime(time, option) } else { return ( d.getMonth()
更多内容请见原文，原文转载自：http://www.mark-to-win.com/tutorial/50895.html
