This page tests handling of malformed escape sequences. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Testing regexp: /\ug/gm PASS regexp.test('ug') is true PASS regexp.lastIndex is 2 Testing regexp: /\xg/gm PASS regexp.test('xg') is true PASS regexp.lastIndex is 2 Testing regexp: /\c_/gm PASS regexp.test('\\c_') is true PASS regexp.lastIndex is 3 Testing regexp: /[\B]/gm PASS regexp.test('B') is true PASS regexp.lastIndex is 1 Testing regexp: /[\b]/gm PASS regexp.test('\b') is true PASS regexp.lastIndex is 1 Testing regexp: /\8/gm PASS regexp.test('\\8') is true PASS regexp.lastIndex is 2 Testing regexp: /^[\c]$/ PASS regexp.test('c') is true Testing regexp: /^[\c_]$/ PASS regexp.test('c') is false Testing regexp: /^[\c]]$/ PASS regexp.test('c]') is true PASS successfullyParsed is true TEST COMPLETE