数组练习
// ------------------------------------- // 找偶数 var arr = [1,2,3,4,5,6,7,8,9,10]; for(var i = 1;i <= 10;i++){ if(i % 2 == 0){ console.log(i); } } // ---------------------------------------------- // 最大值 var attr = [4,8,16,7,9,3,10] var max = attr[0]; for (var i = 0; i < attr.length - 1; i++) { max = max < attr[i+1] ? attr[i+1] : max; } console.log(max); // -------------------------------------------------- // 最小值 var attr = [4,8,16,7,9,3,10] var min = attr[0]; for (var i = 0; i < attr.length - 1; i++) { min = min < attr[i+1] ? min : attr[i+1]; } console.log(min); // ------------------------------------------------------ // 最大索引 var m = 0; var attr = [4,8,16,7,9,3,10]; for(var i = 0;i < attr.length-1;i++){ m = m < i+1 ? i+1 : m; } console.log(m); // ------------------------------------------------------------ // 最小索引 var s = 0; var attr = [4,8,16,7,9,3,10]; for(var i = 0;i < attr.length-1;i++){ s = s < i+1 ? s : i+1; } console.log(s); // --------------------------------------------------------------- // 去重 var attr = [1,4,7,1,7,9,4,6,4,0,3,7,13,16,18,13]; var arr =[]; for(var i = 0;i < attr.length;i++){ if(arr.indexOf(attr[i]) == -1){ arr.push(attr[i]) } } console.log(arr);