最优美的JS代码

[brickspert]

记录看到的最优美的JS代码

[brickspert]

求数组中最大项

var arr = [1, 20, 22, 50, 11, 22];
var max = Math.max.apply(Math, arr);

[yueshuiniao]

求数组中最大项

var arr = [1, 20, 22, 50, 11, 22];
var max = Math.max(...arr);

[brickspert]

前端错误记录到后端

function logError(sev, msg){
        var img = new Image();
        img.src = "log.php?sev=" + encodeURIComponent(sev) + "&msg=" +
                  encodeURIComponent(msg);
}

[hazeFlame]

去重
Array.from(new Set([1,2,3,1,2,1,1,1,1,1]))

[yueshuiniao]

去重

[...new Set([1,2,3,1,2,1,1,1,1,1])]

[blockmood]

准确检测数据类型
Object.prototype.toString.call(val) == '[object ...]'

[Miller547719886]

最大值这样也行
Math.max.call(...arr)

[Misaka-0x447f]

@Miller547719886
.call/.apply没啥区别的