Javascript parseFloat '1.23e-7' gives 1.23e-7 when need 0.000000123

Question

parseFloat(1.51e-6);
// returns 0.00000151

parseFloat(1.23e-7);
// returns 1.23e-7
// required 0.000000123

I am sorting table columns containing a

Answer 1

the problem is not parseFloat, but sort that uses string comparison by default. Try enforcing numeric comparison:

a.sort(function(x, y) { return x - y })