JSFiddle - React, Tailwind, and code Playground

by Jessie Lau

JavaScript

var lengthOfSequence = function (arr, n) {
    // TODO: Write some scripts here
    var counter = 1;
    var numN = 0;
    for (var i = arr.indexOf(n) + 1; i <= arr.length; i++) {
        if (arr[i] == n) {
            numN++;
        }
    }
    if (numN < 2 || numN > 2) {
        return 0;
    }

};
//console.log(lengthOfSequence([-7, 6, 2, -7, 4], -7));
//console.log(lengthOfSequence([-7, 5, 0, 2, 9, 5], 5));
console.log(lengthOfSequence([-7, 5, 0, 5, 2, 9, 5], 5));