Learn how to control deployments with features like environments and concurrency.

The unary logical negation operator `!`.

Iteration protocols aren't new built-ins or syntax, but protocols. These protocols can be implemented by any object by following some conventions.

The bind() method of Function instances creates a new function that, when called, calls this function with its this keyword set to the provided value, and a given sequence of arguments preceding any provided when the new function is called.

An IPv6 address.

An iterator to maintain state while iterating another iterator.

The era accessor property of Temporal.ZonedDateTime instances returns a calendar-specific lowercase string representing the era of this date, or undefined if the calendar does not use eras (e.g. ISO 8601). era and eraYear together uniquely identify a year in a calendar, in the same way that year does. It is calendar-dependent.

An iterator that yields a single element of type `A` by applying the provided closure `F: FnOnce() -> A`.

A raw pointer type which can be safely shared between threads.

The replace() method of String values returns a new string with one, some, or all matches of a pattern replaced by a replacement. The pattern can be a string or a RegExp, and the replacement can be a string or a function called for each match. If pattern is a string, only the first occurrence will be replaced. The original string is left unchanged.