JS 生成随机背景色

JS

生成随机颜色

简单一句话:

 let color = '#' + Math.random().toString(16).substr(-6)
 span.style.backgroundColor = color

百度找的各种方法:

随机颜色 一.

        function ranColor() {
            var str = '0123456789abcdef';
            var bgColor = '#';
            for (var i = 0; i < 6; i++) {
                var idx = parseInt(Math.random() * str.length);
                bgColor += str[idx];
            }
            return bgColor;
        }

生成随机颜色 二.

	function getColor(){
        var str = "#";
        var arr = ["1","2","3","4","4","5","6","7","8","9","a","b","c","d","e","f"];
        for(var i=0;i<6;i++){
            var num = parseInt(Math.random() * 16);
            str+=arr[num];
        }
        return str;
    }