JS从数组中随机获取一个值
//定义一个数组var urls = ['value1','value2','value3','value4','value5'];//随机从数组中获取一个值var element = urls[Math.floor((Math.random()*urls.length))];//循环测试下随机获取一个值。for(var i=0;i<10;i++){ var element = urls[Math.floor((Math.random()*urls.length))]; console.log('第' + i +'次获取到:' + element);}
随机值获取10次测试成果: