diff --git a/stringsConstruction/easy solution of stringConstruction b/stringsConstruction/easy solution of stringConstruction
new file mode 100644
index 00000000..fc4e56b2
--- /dev/null
+++ b/stringsConstruction/easy solution of stringConstruction	
@@ -0,0 +1,2 @@
+    let arr = b.split('').map( x => a.split('').filter(y => y === x)).flat();
+    return arr.length / a.length // my solution;