Create 1165-single-row-keyboard.js

Author: everthis

1165-single-row-keyboard.js

@@ -0,0 +1,17 @@
+/**
+ * @param {string} keyboard
+ * @param {string} word
+ * @return {number}
+ */
+const calculateTime = function(keyboard, word) {
+  const hash = {}, { abs } = Math
+  for(let i = 0; i < 26; i++) {
+    hash[keyboard[i]] = i
+  }
+  let pre = 0, sum = 0
+  for(const ch of word) {
+    sum += abs(hash[ch] - pre)
+    pre = hash[ch]
+  }
+  return sum
+};