Dart SDK Spelling b, c, and d.

pkg/dev_compiler/tool/input_sdk/lib/js/dart2js/js_dart2js.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Support for interoperating with JavaScript.
  *
  * This library provides access to JavaScript objects from Dart, allowing
  * Dart code to get and set properties, and call methods of JavaScript objects
  * and invoke JavaScript functions. The library takes care of converting
@@ skipping 58 matching lines @@
  * * `TypedData`, including its subclasses like `Int32List`, but _not_
  *   `ByteBuffer`
  * * `Window`
  *
  * ## Converting collections with JsObject.jsify()
  *
  * To create a JavaScript collection from a Dart collection use the
  * [JsObject.jsify] constructor, which converts Dart [Map]s and [Iterable]s
  * into JavaScript Objects and Arrays.
  *
- * The following expression creats a new JavaScript object with the properties
+ * The following expression creates a new JavaScript object with the properties
  * `a` and `b` defined:
  *
  *     var jsMap = new JsObject.jsify({'a': 1, 'b': 2});
  *
  * This expression creates a JavaScript array:
  *
  *     var jsArray = new JsObject.jsify([1, 2, 3]);
  */
 library dart.js;
 
@@ skipping 471 matching lines @@
 /// future if Dart2Js is refactored so that its function calling conventions
 /// are more compatible with JavaScript.
 Function/*=F*/ allowInterop/*<F extends Function>*/(Function/*=F*/ f) => f;
 
 Expando<Function> _interopCaptureThisExpando = new Expando<Function>();
 
 /// Returns a [Function] that when called from JavaScript captures its 'this'
 /// binding and calls [f] with the value of this passed as the first argument.
 /// When called from Dart, [null] will be passed as the first argument.
 ///
-/// See the documention for [allowInterop]. This method should only be used with
-/// package:js Dart-JavaScript interop.
+/// See the documentation for [allowInterop]. This method should only be used
+/// with package:js Dart-JavaScript interop.
 Function allowInteropCaptureThis(Function f) {
   var ret = _interopCaptureThisExpando[f];
   if (ret == null) {
     ret = JS(
         '',
         'function(/*...arguments*/) {'
         '  let args = [this];'
         '  for (let arg of arguments) {'
         '    args.push(arg);'
         '  }'
         '  return #(...args);'
         '}',
         f);
     _interopCaptureThisExpando[f] = ret;
   }
   return ret;
 }