html - Javascript string/integer comparisons -

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i store parameters client-side in html , need compare them integers. unfortunately have come across serious bug cannot explain. bug seems js reads parameters strings rather integers, causing integer comparisons fail.

i have generated small example of error, can't explain. following returns 'true' when run: 

javascript:alert("2">"10")

parse string integer using parseint:

javascript:alert(parseint("2", 10)>parseint("10", 10))

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