Added auctex and yasnippets

.emacs.d/snippets/js-mode/class-es6

@@ -0,0 +1,13 @@
+# -*- mode: snippet; require-final-newline: nil -*-
+# name: class-es6
+# key: class
+# group: es6
+# --
+class ${1:Class}${2: extends ${3:ParentClass}} {
+  ${4:constructor(${5:arg}) {
+    ${6:super(arg);}
+    $7
+  }}
+
+  $0
+}