1 files changed, 79 insertions, 86 deletions
diff --git a/plugin/math/math.js b/plugin/math/math.js
index d76c9dd..32bc432 100755
--- a/plugin/math/math.js
+++ b/plugin/math/math.js
@@ -4,89 +4,82 @@
  *
  * @author Hakim El Hattab
  */
-var RevealMath = window.RevealMath || (function(){
-
-	var options = Reveal.getConfig().math || {};
-	var mathjax = options.mathjax || 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js';
-	var config = options.config || 'TeX-AMS_HTML-full';
-	var url = mathjax + '?config=' + config;
-
-	var defaultOptions = {
-		messageStyle: 'none',
-		tex2jax: {
-			inlineMath: [ [ '$', '$' ], [ '\\(', '\\)' ] ],
-			skipTags: [ 'script', 'noscript', 'style', 'textarea', 'pre' ]
-		},
-		skipStartupTypeset: true
-	};
-
-	function defaults( options, defaultOptions ) {
-
-		for ( var i in defaultOptions ) {
-			if ( !options.hasOwnProperty( i ) ) {
-				options[i] = defaultOptions[i];
-			}
-		}
-
-	}
-
-	function loadScript( url, callback ) {
-
-		var head = document.querySelector( 'head' );
-		var script = document.createElement( 'script' );
-		script.type = 'text/javascript';
-		script.src = url;
-
-		// Wrapper for callback to make sure it only fires once
-		var finish = function() {
-			if( typeof callback === 'function' ) {
-				callback.call();
-				callback = null;
-			}
-		}
-
-		script.onload = finish;
-
-		// IE
-		script.onreadystatechange = function() {
-			if ( this.readyState === 'loaded' ) {
-				finish();
-			}
-		}
-
-		// Normal browsers
-		head.appendChild( script );
-
-	}
-
-	return {
-		init: function() {
-
-			defaults( options, defaultOptions );
-			defaults( options.tex2jax, defaultOptions.tex2jax );
-			options.mathjax = options.config = null;
-
-			loadScript( url, function() {
-
-				MathJax.Hub.Config( options );
-
-				// Typeset followed by an immediate reveal.js layout since
-				// the typesetting process could affect slide height
-				MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub ] );
-				MathJax.Hub.Queue( Reveal.layout );
-
-				// Reprocess equations in slides when they turn visible
-				Reveal.addEventListener( 'slidechanged', function( event ) {
-
-					MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, event.currentSlide ] );
-
-				} );
-
-			} );
-
-		}
-	}
-
-})();
-
-Reveal.registerPlugin( 'math', RevealMath );
+var RevealMath =
+    window.RevealMath ||
+    (function () {
+        var options = Reveal.getConfig().math || {};
+        var mathjax = options.mathjax || "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js";
+        var config = options.config || "TeX-AMS_HTML-full";
+        var url = mathjax + "?config=" + config;
+
+        var defaultOptions = {
+            messageStyle: "none",
+            tex2jax: {
+                inlineMath: [
+                    ["$", "$"],
+                    ["\\(", "\\)"],
+                ],
+                skipTags: ["script", "noscript", "style", "textarea", "pre"],
+            },
+            skipStartupTypeset: true,
+        };
+
+        function defaults(options, defaultOptions) {
+            for (var i in defaultOptions) {
+                if (!options.hasOwnProperty(i)) {
+                    options[i] = defaultOptions[i];
+                }
+            }
+        }
+
+        function loadScript(url, callback) {
+            var head = document.querySelector("head");
+            var script = document.createElement("script");
+            script.type = "text/javascript";
+            script.src = url;
+
+            // Wrapper for callback to make sure it only fires once
+            var finish = function () {
+                if (typeof callback === "function") {
+                    callback.call();
+                    callback = null;
+                }
+            };
+
+            script.onload = finish;
+
+            // IE
+            script.onreadystatechange = function () {
+                if (this.readyState === "loaded") {
+                    finish();
+                }
+            };
+
+            // Normal browsers
+            head.appendChild(script);
+        }
+
+        return {
+            init: function () {
+                defaults(options, defaultOptions);
+                defaults(options.tex2jax, defaultOptions.tex2jax);
+                options.mathjax = options.config = null;
+
+                loadScript(url, function () {
+                    MathJax.Hub.Config(options);
+
+                    // Typeset followed by an immediate reveal.js layout since
+                    // the typesetting process could affect slide height
+                    MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
+                    MathJax.Hub.Queue(Reveal.layout);
+
+                    // Reprocess equations in slides when they turn visible
+                    Reveal.addEventListener("slidechanged", function (event) {
+                        MathJax.Hub.Queue(["Typeset", MathJax.Hub, event.currentSlide]);
+                    });
+                });
+            },
+        };
+    })();
+
+Reveal.registerPlugin("math", RevealMath);