The buffer accessor property of DataView instances returns the ArrayBuffer or SharedArrayBuffer referenced by this view at construction time.

The endsWith() method of String values determines whether a string ends with the characters of this string, returning true or false as appropriate.

The set() method of Map instances adds or updates an entry in this map with a specified key and a value.

The Symbol.replace static data property represents the well-known symbol @@replace. The String.prototype.replace() and String.prototype.replaceAll() methods look up this symbol on their first argument for the method that replaces substrings matched by the current object.

The description accessor property of Symbol values returns a string containing the description of this symbol, or undefined if the symbol has no description.

The Symbol.hasInstance static data property represents the well-known symbol @@hasInstance. The instanceof operator looks up this symbol on its right-hand operand for the method used to determine if the constructor object recognizes an object as its instance.

The flags accessor property of RegExp instances returns the flags of this regular expression.

The has() method of WeakSet instances returns a boolean indicating whether an object exists in this WeakSet or not.

The Uint8Array() constructor creates Uint8Array objects. The contents are initialized to 0.

The delete() method of WeakSet instances removes the specified element from this WeakSet.