Read N Characters Given Read 4 II

Author: charlesbuczel

0158_readNCharactersGivenRead4II-callMultipleItems.js

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+/**
+ * @typedf read4
+ * @param {character[]} buf Destination buffer
+ * @return {number} The number of characters read
+ * read4 = function(buf4) {
+ *     ...
+ * };
+ */
+
+/**
+ * @param {function} read4()
+ * @return {function}
+ */
+const solution = read4 => {
+  const temp = [];
+
+  /**
+   * @param {character[]} buf Destination buffer.
+   * @param {number} n Number of characters to read.
+   * @return {number} The number of actual characters read.
+   * @summary Read N Characters Given Read4 II - Call multiple times {@link https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times/}
+   * @description
+   * Space O() -
+   * Time O() -
+   */
+  return (buf, n) => {
+    while (n) {
+      if (!temp.length) read4(temp);
+      if (!temp.length) return;
+      buf.push(temp.shift());
+      n--;
+    }
+  };
+};