Editorial: Add missing part of note in Array find/findIndex/`forE…

…ach` (tc39#2076)

Fixes tc39#2075

spec.html

@@ -33671,7 +33671,7 @@ <h1>Array.prototype.find ( _predicate_ [ , _thisArg_ ] )</h1>
           <p>If a _thisArg_ parameter is provided, it will be used as the *this* value for each invocation of _predicate_. If it is not provided, *undefined* is used instead.</p>
           <p>_predicate_ is called with three arguments: the value of the element, the index of the element, and the object being traversed.</p>
           <p>`find` does not directly mutate the object on which it is called but the object may be mutated by the calls to _predicate_.</p>
-          <p>The range of elements processed by `find` is set before the first call to _predicate_. Elements that are appended to the array after the call to `find` begins will not be visited by _predicate_. If existing elements of the array are changed, their value as passed to _predicate_ will be the value at the time that `find` visits them.</p>
+          <p>The range of elements processed by `find` is set before the first call to _predicate_. Elements that are appended to the array after the call to `find` begins will not be visited by _predicate_. If existing elements of the array are changed, their value as passed to _predicate_ will be the value at the time that `find` visits them; elements that are deleted after the call to `find` begins and before being visited are not visited.</p>
         </emu-note>
         <p>When the `find` method is called, the following steps are taken:</p>
         <emu-alg>
@@ -33699,7 +33699,7 @@ <h1>Array.prototype.findIndex ( _predicate_ [ , _thisArg_ ] )</h1>
           <p>If a _thisArg_ parameter is provided, it will be used as the *this* value for each invocation of _predicate_. If it is not provided, *undefined* is used instead.</p>
           <p>_predicate_ is called with three arguments: the value of the element, the index of the element, and the object being traversed.</p>
           <p>`findIndex` does not directly mutate the object on which it is called but the object may be mutated by the calls to _predicate_.</p>
-          <p>The range of elements processed by `findIndex` is set before the first call to _predicate_. Elements that are appended to the array after the call to `findIndex` begins will not be visited by _predicate_. If existing elements of the array are changed, their value as passed to _predicate_ will be the value at the time that `findIndex` visits them.</p>
+          <p>The range of elements processed by `findIndex` is set before the first call to _predicate_. Elements that are appended to the array after the call to `findIndex` begins will not be visited by _predicate_. If existing elements of the array are changed, their value as passed to _predicate_ will be the value at the time that `findIndex` visits them; elements that are deleted after the call to `findIndex` begins and before being visited are not visited.</p>
         </emu-note>
         <p>When the `findIndex` method is called with one or two arguments, the following steps are taken:</p>
         <emu-alg>
@@ -33789,6 +33789,7 @@ <h1>Array.prototype.forEach ( _callbackfn_ [ , _thisArg_ ] )</h1>
           <p>If a _thisArg_ parameter is provided, it will be used as the *this* value for each invocation of _callbackfn_. If it is not provided, *undefined* is used instead.</p>
           <p>_callbackfn_ is called with three arguments: the value of the element, the index of the element, and the object being traversed.</p>
           <p>`forEach` does not directly mutate the object on which it is called but the object may be mutated by the calls to _callbackfn_.</p>
+          <p>The range of elements processed by `forEach` is set before the first call to _callbackfn_. Elements which are appended to the array after the call to `forEach` begins will not be visited by _callbackfn_. If existing elements of the array are changed, their value as passed to _callbackfn_ will be the value at the time `forEach` visits them; elements that are deleted after the call to `forEach` begins and before being visited are not visited.</p>
         </emu-note>
         <p>When the `forEach` method is called with one or two arguments, the following steps are taken:</p>
         <emu-alg>