Hacktoberfest

Javascript/README.md

@@ -19,6 +19,7 @@
 | [Program-13](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Javascript/program-13/program.js) | Asyncronous function program
 | [Program-14](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Javascript/program-14/program.js) |  Create multiple objects with same body using a constructor function
 | [Program-15](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Javascript/program-15/program.js) | Classes in Javascript
+| [Program-16](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Javascript/program-16/program.js) | Hollow Diamond
 
 </div>
 

Javascript/program - 16/program-16.js

@@ -0,0 +1,38 @@
+let n = 5;
+let string = "";
+// Upside pyramid
+// upside diamond
+for (let i = 1; i <= n; i++) {
+  // printing spaces
+  for (let j = n; j > i; j--) {
+    string += " ";
+  }
+  // printing star
+  for (let k = 0; k < i * 2 - 1; k++) {
+    if (k === 0 || k === 2 * i - 2) {
+      string += "*";
+    }
+    else {
+      string += " ";
+    }
+  }
+  string += "\n";
+}
+// downside diamond
+for (let i = 1; i <= n - 1; i++) {
+    // printing spaces
+    for (let j = 0; j < i; j++) {
+      string += " ";
+    }
+    // printing star
+    for (let k = (n - i) * 2 - 1; k >= 1; k--) {
+      if (k === 1 || k === (n - i) * 2 - 1) {
+        string += "*";
+      }
+      else {
+        string += " ";
+      }
+    }
+    string += "\n";
+  }
+console.log(string);

Javascript/program - 16/read.md

@@ -0,0 +1,2 @@
+# Program-16
+## Program to print hollow diamond