Merge pull request #118 from AthulKkumar/js-coding-question

feat: added an js coding question for non repating word in an text

non_repating_word.js

@@ -0,0 +1,14 @@
+function firstNonRepeatedChar(str) {
+    const charCount = {};
+    for (const char of str) {
+      charCount[char] = (charCount[char] || 0) + 1;
+    }
+    for (const char of str) {
+      if (charCount[char] === 1) {
+        return char;
+      }
+    }
+    return null;
+  }
+
+  console.log(firstNonRepeatedChar("programming"));  // Output: "p"