The find() method of TypedArray instances returns the first element in the provided typed array that satisfies the provided testing function. If no values satisfy the testing function, undefined is returned. This method has the same algorithm as Array.prototype.find().

The TypedArray[@@species] static accessor property returns the constructor used to construct return values from typed array methods.

The call() method of Function instances calls this function with a given this value and arguments provided individually.

The copyWithin() method of TypedArray instances shallow copies part of this typed array to another location in the same typed array and returns this typed array without modifying its length. This method has the same algorithm as Array.prototype.copyWithin().

The RegExp.$1, …, RegExp.$9 static accessor properties return parenthesized substring matches.

The Math.LN10 static data property represents the natural logarithm of 10, approximately 2.302.

The Math.SQRT1_2 static data property represents the square root of 1/2, which is approximately 0.707.

The compile() method of RegExp instances is used to recompile a regular expression with new source and flags after the RegExp object has already been created.

The Proxy() constructor creates Proxy objects.

The toLocaleString() method of Array instances returns a string representing the elements of the array. The elements are converted to strings using their toLocaleString methods and these strings are separated by a locale-specific string (such as a comma ",").