Solution for Pangram

javascript/Pangram/solution.js

@@ -0,0 +1,9 @@
+function isPangram(string) {
+  const alph = 'abcdefghijklmnopqrstuvwxyz';
+  const str = string.toLowerCase();
+  
+  return alph.split('').every(e => str.indexOf(e) !== -1);
+}
+
+Test.assertEquals(isPangram('The quick brown fox jumps over the lazy dog.'), true);
+Test.assertEquals(isPangram('This is not a pangram.'), false);