Remove a few pointless references to internal slots (#18461)

* Remove a few pointless references to internal slots

* Update index.md

* Apply suggestions from code review

Co-authored-by: Jean-Yves Perrier <jypenator@gmail.com>

* simplify description

Co-authored-by: Jean-Yves Perrier <jypenator@gmail.com>

files/en-us/web/javascript/reference/global_objects/date/tostring/index.md

@@ -75,11 +75,7 @@ represented as a text value, e.g. `console.log(new Date())`, or when a date
 is used in a string concatenation, such as
 `const today = 'Today is ' + new Date()`.
 
-`toString()` is a generic method, it does not require that its
-`this` is a {{jsxref("Date")}} instance. However, it must have an internal
-`[[TimeValue]]` property that can't be constructed using native JavaScript,
-so it's effectively limited to use with {{jsxref("Date")}} instances. If called on a
-non–Date instance, a {{jsxref("TypeError")}} is thrown.
+`Date.prototype.toString()` must be called on {{jsxref("Date")}} instances. If the `this` value does not inherit from `Date.prototype`, a {{jsxref("TypeError")}} is thrown.
 
 ## Examples
 

files/en-us/web/javascript/reference/global_objects/function/bind/index.md

@@ -40,32 +40,7 @@ arguments (if provided).
 
 ## Description
 
-The `bind()` function creates a new **bound function**, which
-is an _exotic function object_ (a term from ECMAScript 2015) that wraps the
-original function object. Calling the bound function generally results in the execution
-of its wrapped function.
-
-A bound function has the following internal properties:
-
-- **`[[BoundTargetFunction]]`**
-  - : The wrapped function object.
-- **`[[BoundThis]]`**
-  - : The value that is always passed as `this` value when calling the wrapped
-    function.
-- **`[[BoundArguments]]`**
-  - : A list of values whose elements are used as the first arguments to any call to the
-    wrapped function.
-- **`[[Call]]`**
-  - : Executes code associated with this object. Invoked via a function call expression.
-    The arguments to the internal method are a `this` value and a list
-    containing the arguments passed to the function by a call expression.
-
-When a bound function is called, it calls internal method `[[Call]]` on
-`[[BoundTargetFunction]]`, with following arguments
-`Call(boundThis, ...args)`. Where
-`boundThis` is `[[BoundThis]]`,
-`args` is `[[BoundArguments]]`, followed by the
-arguments passed by the function call.
+The `bind()` function creates a new **bound function**. Calling the bound function generally results in the execution of its wrapped function. The bound function will store the parameters passed — which include the value of `this` and the first few arguments — as its internal state. These values are stored in advance, instead of being passed at call time. You can generally see `const boundFn = fn.bind(thisArg, arg1, arg2)` as being equivalent to `const boundFn = (...restArgs) => fn.call(thisArg, arg1, arg2, ...restArgs)`.
 
 A bound function may also be constructed using the {{jsxref("Operators/new", "new")}}
 operator. Doing so acts as though the target function had instead been constructed. The

files/en-us/web/javascript/reference/global_objects/symbol/for/index.md

@@ -36,22 +36,12 @@ returned.
 ## Description
 
 In contrast to `Symbol()`, the `Symbol.for()` function creates a
-symbol available in a global symbol registry list. `Symbol.for()` does also
+symbol available in a [global symbol registry](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#shared_symbols_in_the_global_symbol_registry) list. `Symbol.for()` does also
 not necessarily create a new symbol on every call, but checks first if a symbol with the
 given `key` is already present in the registry. In that case, that symbol is
 returned. If no symbol with the given key is found, `Symbol.for()` will
 create a new global symbol.
 
-### Global symbol registry
-
-The global symbol registry is a list with the following record structure and it is
-initialized empty:
-
-| Field name | Value                                   |
-| ---------- | --------------------------------------- |
-| [[key]]    | A string key used to identify a symbol. |
-| [[symbol]] | A symbol that is stored globally.       |
-
 ## Examples
 
 ### Using Symbol.for()

files/en-us/web/javascript/reference/global_objects/symbol/keyfor/index.md

@@ -28,8 +28,7 @@ Symbol.keyFor(sym);
 
 ### Return value
 
-A string representing the key for the given symbol if one is found on the global
-registry; otherwise, {{jsxref("undefined")}}.
+A string representing the key for the given symbol if one is found on the [global registry](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#shared_symbols_in_the_global_symbol_registry); otherwise, {{jsxref("undefined")}}.
 
 ## Examples