diff --git a/index.html b/index.html
index 96c2960..7fe3b3b 100755
--- a/index.html
+++ b/index.html
@@ -27,7 +27,8 @@
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
- link.href = window.location.search.match(/print-pdf/gi) ? 'https://unpkg.com/reveal.js/css/print/pdf.css' : 'https://unpkg.com/reveal.js/css/print/paper.css';
+ link.href = window.location.search.match(/print-pdf/gi) ? 'https://unpkg.com/reveal.js/css/print/pdf.css' :
+ 'https://unpkg.com/reveal.js/css/print/paper.css';
document.getElementsByTagName('head')[0].appendChild(link);
@@ -424,18 +425,17 @@
Also there are...
-
-
-
+ a && a.b && a.b.c // 🤬
+
+
+ a?.b?.c // 🚀
+
+
+ something || 'default'
+
+
+ false || 'default' // => 'default'
+ 0 || 'default' // => 'default'
+
+
+ something ?? 'default' // 🚀
+
+
+ 0 ?? 'default' // => 0
+ false ?? 'default' // => false
+
+
+ (something === null || something === undefined) ? something : 'default'
+
+