New: Project Aphrodite

frontend/src/polyfills.js

@@ -0,0 +1,41 @@
+/* eslint no-empty-function: 0 no-extend-native: 0 */
+
+window.console = window.console || {};
+window.console.log = window.console.log || function() {};
+window.console.group = window.console.group || function() {};
+window.console.groupEnd = window.console.groupEnd || function() {};
+window.console.debug = window.console.debug || function() {};
+window.console.warn = window.console.warn || function() {};
+window.console.assert = window.console.assert || function() {};
+
+if (!String.prototype.startsWith) {
+  Object.defineProperty(String.prototype, 'startsWith', {
+    enumerable: false,
+    configurable: false,
+    writable: false,
+    value(searchString, position) {
+      position = position || 0;
+      return this.indexOf(searchString, position) === position;
+    }
+  });
+}
+
+if (!String.prototype.endsWith) {
+  Object.defineProperty(String.prototype, 'endsWith', {
+    enumerable: false,
+    configurable: false,
+    writable: false,
+    value(searchString, position) {
+      position = position || this.length;
+      position = position - searchString.length;
+      const lastIndex = this.lastIndexOf(searchString);
+      return lastIndex !== -1 && lastIndex === position;
+    }
+  });
+}
+
+if (!('contains' in String.prototype)) {
+  String.prototype.contains = function(str, startIndex) {
+    return String.prototype.indexOf.call(this, str, startIndex) !== -1;
+  };
+}