数组中最大偶数

let arr = [11, 45, 87, 10, 99, 5, 22, 7, 77, 88, 100, 13];
    let arr1 = []
    let max = 0;
    for (let i = 0; i < arr.length; i++) {
        // arr的每一个数组除以2余数是0
        if (arr[i] % 2 == 0) {
            arr1.push(arr[i])
        }
    }
    for (let j = 0; j < arr1.length; j++) {
        if (arr1[j] > max) {
            max = arr1[j]
        }
    }
    document.write('最大值' + max);