The regular expression for locating a precise word at the tenth position in JavaScript would be:
/\b\w{9}WORD\b/
where WORD is the word you want to match.
This regular expression will match any word that is exactly at the tenth position in the string. \b represents a word boundary, \w{9} represents any word character occurring exactly 9 times, and the final \b ensures that the word is not a part of a larger word.
