js中的小技巧

//这种方法还可以将字符串转换成数字类型
        var a = ~~2.33
        var b= 2.56 | 0
        var c= 2.33 >> 0
		console.log(a);
        console.log(b);
        console.log(c);

        /*字符串金钱，转成标准金钱格式*/
        var test1 = '1234567890'
        var format = test1.replace(/\B(?=(\d{3})+(?!\d))/g, ',')
        console.log(format) // 1,234,567,890

		/*去除数组中的最大值 最小值*/
        var numbers = [5, 458 , 120 , -215 , 228 , 400 , 122205, -85411];
        var maxInNumbers = Math.max.apply(Math, numbers);
        var minInNumbers = Math.min.apply(Math, numbers);
        console.log(maxInNumbers);
        console.log(minInNumbers);