Initial data commit

Task/Summarize-and-say-sequence/JavaScript/summarize-and-say-sequence.js

@@ -0,0 +1,17 @@
+function selfReferential(n) {
+    n = n.toString();
+    let res = [n];
+    const makeNext = (n) => {
+        let matchs = {
+            '9':0,'8':0,'7':0,'6':0,'5':0,'4':0,'3':0,'2':0,'1':0,'0':0}, res = [];
+        for(let index=0;index<n.length;index++)
+            matchs[n[index].toString()]++;
+        for(let index=9;index>=0;index--)
+            if(matchs[index]>0)
+                res.push(matchs[index],index);
+        return res.join("").toString();
+    }
+    for(let i=0;i<10;i++)
+        res.push(makeNext(res[res.length-1]));
+    return [...new Set(res)];
+}