The JavaScript exception "invalid named capture reference in regular expression" occurs when a regular expression pattern contains a named backreference that does not refer to a named capture group before it. The similar error message "invalid named reference in regular expression" is thrown when the sequence \k is encountered but is not followed by <.

The Number.parseFloat() static method parses an argument and returns a floating point number. If a number cannot be parsed from the argument, it returns NaN.

The map() method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array.

The Number.MAX_VALUE static data property represents the maximum numeric value representable in JavaScript.

The JavaScript exception "return not in function" occurs when a return statement is called outside of a function.

The JavaScript exception "x can't be converted to BigInt" occurs when attempting to convert a Symbol, null, or undefined value to a BigInt, or if an operation expecting a BigInt parameter receives a number.

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The Object.create() static method creates a new object, using an existing object as the prototype of the newly created object.

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