feat: add typescript solution to lc problem: No.1904.The Number of Full Rounds You Have Played (doocs#462)

zhaocchen · web-flow · commit 0105f30608aa · 2021-06-20T23:04:04.000+08:00
diff --git a/solution/1900-1999/1904.The Number of Full Rounds You Have Played/README.md b/solution/1900-1999/1904.The Number of Full Rounds You Have Played/README.md
@@ -106,6 +106,32 @@ class Solution {
 }
 ```
 
+### **JavaScript**
+
+```js
+/**
+ * @param {string} startTime
+ * @param {string} finishTime
+ * @return {number}
+ */
+ var numberOfRounds = function(startTime, finishTime) {
+    let p1 = Math.ceil(toMinutes(startTime) / 15);
+    let p2 = Math.floor(toMinutes(finishTime) / 15);
+
+    if (p1 > p2) {
+        p2 += 24 * 60 / 15;
+    }
+
+    let ans = p2 - p1;
+    return ans;
+};
+
+function toMinutes(time) {
+    let [h, m] = time.split(':');
+    return Number(h) * 60 + Number(m);
+}
+```
+
 ### **C++**
 
 ```cpp
diff --git a/solution/1900-1999/1904.The Number of Full Rounds You Have Played/README_EN.md b/solution/1900-1999/1904.The Number of Full Rounds You Have Played/README_EN.md
@@ -94,6 +94,32 @@ class Solution {
 }
 ```
 
+### **JavaScript**
+
+```js
+/**
+ * @param {string} startTime
+ * @param {string} finishTime
+ * @return {number}
+ */
+ var numberOfRounds = function(startTime, finishTime) {
+    let p1 = Math.ceil(toMinutes(startTime) / 15);
+    let p2 = Math.floor(toMinutes(finishTime) / 15);
+
+    if (p1 > p2) {
+        p2 += 24 * 60 / 15;
+    }
+
+    let ans = p2 - p1;
+    return ans;
+};
+
+function toMinutes(time) {
+    let [h, m] = time.split(':');
+    return Number(h) * 60 + Number(m);
+}
+```
+
 ### **C++**
 
 ```cpp
diff --git a/solution/1900-1999/1904.The Number of Full Rounds You Have Played/Solution.js b/solution/1900-1999/1904.The Number of Full Rounds You Have Played/Solution.js
@@ -0,0 +1,21 @@
+/**
+ * @param {string} startTime
+ * @param {string} finishTime
+ * @return {number}
+ */
+ var numberOfRounds = function(startTime, finishTime) {
+    let p1 = Math.ceil(toMinutes(startTime) / 15);
+    let p2 = Math.floor(toMinutes(finishTime) / 15);
+
+    if (p1 > p2) {
+        p2 += 24 * 60 / 15;
+    }
+
+    let ans = p2 - p1;
+    return ans;
+};
+
+function toMinutes(time) {
+    let [h, m] = time.split(':');
+    return Number(h) * 60 + Number(m);
+}
