1 files changed, 59 insertions, 0 deletions
diff --git a/challenge-005/zapwai/javascript/ch-2.js b/challenge-005/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..07ba52c4c2
--- /dev/null
+++ b/challenge-005/zapwai/javascript/ch-2.js
@@ -0,0 +1,59 @@
+let dict;
+
+const fileInput = document.getElementById('fileInput');
+fileInput.addEventListener('change', handleFileUpload);
+
+const ourParagraph = document.getElementById('ourParagraph');
+
+function handleFileUpload(event) {
+    const file = event.target.files[0];
+    if (!file) {
+	console.error('No file selected');
+	return;
+    }
+    const reader = new FileReader();
+    reader.onload = function(e) {
+	const content = e.target.result;
+	const words = content.split(/\s+/);
+	dict = words;
+	mostAnagrams();
+    };	
+    reader.readAsText(file);    
+}
+
+function mostAnagrams() {
+    let sorted = dict.slice();
+    sorted.forEach( (w, i) => {
+	sorted[i] = w.split('').sort().join("");
+    });
+    sorted.sort();
+
+    let maxnum = 0;
+    let maxword = "";
+
+    let flag = 0;
+    let cnt = 0;
+    for (let i = 0; i < sorted.length; i++) {
+	if (flag == 1) {
+	    if (sorted[i+1] != sorted[i]) {
+		flag = 0;
+		cnt += 1;
+		if (maxnum < cnt) {
+		    maxnum = cnt;
+		    maxword = sorted[i];
+		}
+		cnt = 0;
+	    }
+	    cnt += 1;
+	} else {
+	    if (sorted[i + 1] == sorted[i]) {
+		cnt += 1;
+		flag = 1;
+	    }
+	}
+    }
+    
+    ourParagraph.innerHTML =
+	`Max number of anagrams: ${maxnum}<br>
+Characters: ${maxword}<br>`;
+}