forward and backmatches counted

4/index.js

@@ -1,9 +1,27 @@
 const fs = require("fs")
 const forwardRegex = /XMAS/g
+const backwardRegex = /SAMX/g
 const input = fs.readFileSync("input.txt","utf-8")
 const inputArr = input.split("\n")
-console.log(inputArr)
+let totalMatches= 0;
+// console.log(inputArr)
 // const forwardMatchs = input.match(forwardRegex)
 // console.log(input)
 // console.log(forwardMatchs.length)
 //create a sliding window to match the words
+
+
+for (row of inputArr){
+    // console.log(row)
+    const forwardMatches = row.match(forwardRegex)
+    const backwordsMatches= row.match(backwardRegex)
+
+    if(forwardMatches){
+        totalMatches += forwardMatches.length
+    }
+    if(backwordsMatches){
+        totalMatches += backwordsMatches.length
+    }
+}
+
+console.log("totalMatches: ",totalMatches)