The toDateString() method of Date instances returns a string representing the date portion of this date interpreted in the local timezone.

The toUTCString() method of Date instances returns a string representing this date in the RFC 7231 format, with negative years allowed. The timezone is always UTC. toGMTString() is an alias of this method.

The valueOf() method of Date instances returns the number of milliseconds for this date since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC.

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.

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 valueOf() method of String values returns this string value.

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

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 Atomics.add() static method adds a given value at a given position in the array and returns the old value at that position. This atomic operation guarantees that no other write happens until the modified value is written back.