The JavaScript RegExp constructor Property returns the function that created the RegExp prototype.

The JavaScript RegExp global property returns “true” if the g modifier is set, and “false” if it is not set.

The JavaScript RegExp ignoreCase property returns “true” if the i modifier is set, and “false” if it is not set.

The JavaScript RegExp lastIndex property specifies the index at which to start the next match, and only works if the g modifier is set.

The JavaScript RegExp multiline property returns “true” if the m modifier is set, and “false” if it is not set.

The JavaScript RegExp source property returns the text of the RegExp pattern.