Update string-prototypes.js

string-prototypes.js

@@ -27,3 +27,23 @@ String.prototype.ucwords = function () {
             });
 
 }
+
+String.prototype.createSlug = function () {
+    var str = this;
+    str = str.replace(/^\s+|\s+$/g, ''); // trim
+    str = str.toLowerCase();
+
+    // remove accents, swap ñ for n, etc
+    var from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;";
+    var to   = "aaaaeeeeiiiioooouuuunc------";
+    for (var i=0, l=from.length ; i<l ; i++) {
+    str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
+    }
+
+    str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
+    .replace(/\s+/g, '-') // collapse whitespace and replace by -
+    .replace(/-+/g, '-'); // collapse dashes
+
+    return str;
+
+}