Sync LeetCode submission - Path Crossing (javascript)

problems/path_crossing/solution.js

@@ -0,0 +1,37 @@
+/**
+ * @param {string} path
+ * @return {boolean}
+ */
+var isPathCrossing = function(path) {
+    // Initialize starting position and a set to store visited points
+    let x = 0, y = 0, point = `${x} ${y}`;
+    const set = new Set([point])
+
+    for(direction of path){
+        // Update position based on the current direction
+        if(direction == "N"){
+            ++x;
+        }
+        else if(direction == "E"){
+            ++y;
+        }
+        else if(direction == "W"){
+            --y;
+        }
+        else if(direction == "S"){
+            --x
+        }
+
+        point = `${x} ${y}`;
+        // Check if the point has been visited before
+        if(set.has(point)){
+            return true
+        }
+        else{
+            // If the point is not visited, add it to the set
+            set.add(point)
+        }
+    }
+    // If no crossing occurred during the entire path, return false
+    return false
+};