The Date() constructor creates Date objects. When called as a function, it returns a string representing the current time.

The EvalError() constructor creates EvalError objects.

The toString() method of String values returns this string value.

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

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

The blink() method of String values creates a string that embeds this string in a <blink> element (<blink>str</blink>), which used to cause a string to blink in old browsers.

The fontsize() method of String values creates a string that embeds this string in a <font> element (<font size="...">str</font>), which causes this string to be displayed in the specified font size.

The String.raw() static method is a tag function of template literals. This is similar to the r prefix in Python, or the @ prefix in C# for string literals. It's used to get the raw string form of template literals — that is, substitutions (e.g., ${foo}) are processed, but escape sequences (e.g., \n) are not.

The anchor() method of String values creates a string that embeds this string in an <a> element with a name (<a name="...">str</a>).

The big() method of String values creates a string that embeds this string in a <big> element (<big>str</big>), which causes this string to be displayed in a big font.