From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.2 i686; en-US; 0.8.1) Gecko/20010326 BuildID: 2001032614 Doing document.write('blah'+'blah'+'blah' ... really bogs down mozilla, but document write('blahblahblah... is much faster. document.write('blah'); document.write('blah'); ... is slightly slower than one document.write() but still managable. Reproducible: Always Steps to Reproduce: Go to http://d1.selectacast.net/~jks/writeplus.jsp write1.jsp and writemany.jsp and compare. writeplus is 'blah '+ repeated, write1 is everything in one string, and writemany is multiple document.write()'s. Actual Results: writeplus too much longer than the other pages. Expected Results: writeplus should be on the order of write1. I also made the pages write1table.jsp and writemanytable.jsp, but those can't be compared with the non-table versions. writeplus.jsp crashes netscape 4.76 on linux but doesn't crash netscape 4.7 on windows. IE seems to do a much better job than mozilla with writeplus.

This is a duplicate of bug 56940, "O(n**2) and O(n**3) growth too easy with JS string concat" *** This bug has been marked as a duplicate of 56940 ***

Marking Verified Duplicate - jks@akula.com: I will cc you on bug 56940 so you can follow its progress. Also note these reports: bug 40391 "JS + on long strings freezes mozilla, horks Win98" bug 64589 "Recursive Javascript/DOM additions crash browser HARD"