{"id":502,"date":"2023-08-25T17:22:43","date_gmt":"2023-08-25T17:22:43","guid":{"rendered":"\/\/api.jquery.com\/?p=502"},"modified":"2024-09-14T22:28:15","modified_gmt":"2024-09-14T22:28:15","slug"...

Trait for comparisons corresponding to equivalence relations.

A literal character specifies exactly itself to be matched in the input text.

A lookbehind assertion "looks behind": it attempts to match the previous input with the given pattern, but it does not consume any of the input — if the match is successful, the current position in the input stays the same. It matches each atom in its pattern in the reverse order.

The JavaScript exception "invalid property name in regular expression" or "invalid class property name in regular expression" occurs when the \p and \P Unicode character class escapes are not followed by a valid Unicode property name and/or value.

The JavaScript exception "invalid regexp group" occurs when the sequence (? does not start a valid group syntax. Recognized group syntaxes that start with (? include:

The JavaScript exception "import declarations may only appear at top level of a module" occurs when an import declaration is not at the top level of a module. This might be because the import declaration is nested in other constructs (functions, blocks, etc.), or more often because the current file is not treated as a module.

`x` formatting.

The handler.setPrototypeOf() method is a trap for the [[SetPrototypeOf]] object internal method, which is used by operations such as Object.setPrototypeOf().

The bitwise OR assignment operator `|=`.