我想在一個input透過陣列中使用二分搜尋,找到最相近的值,並在input變換成最相近的數值,該如何實現呢?假設陣列是 [ 4, 7, 8 ] 在input中輸入5 他會自動變成4.求助大神!//二分搜尋法Array.prototype.binary_search = function(low, high, khey) {if (low > high)return -1;var mid = parseInt((high + low) / 2);if (this[mid] > khey)return this.binary_search(low, mid - 1, khey);if (this[mid] < khey)return this.binary_search(mid + 1, high, khey);return mid;};
input輸入時判定陣列值
慕田峪7331174
2018-11-13 08:37:46