When did JS not have strict equality?
1995-1999. Strict equality was introduced in ES3 which was first released in December 1999.
https://www-archive.mozilla.org/js/language/e262-3.pdf
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1995-1999. Strict equality was introduced in ES3 which was first released in December 1999.
https://www-archive.mozilla.org/js/language/e262-3.pdf