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Re^7: number array with space

by gurpreetsingh13 (Scribe)
on Jun 20, 2013 at 09:42 UTC ( #1039928=note: print w/ replies, xml ) Need Help??

in reply to Re^6: number array with space
in thread number array with space

Simply go for regex then:
if ($array[$i] =~ /\d+/){ <your code> }

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Re^8: number array with space
by AnomalousMonk (Canon) on Jun 20, 2013 at 13:08 UTC
    if ($array[$i] =~ /\d+/){ <your code> }

    But that matches non-numbers:

    >perl -wMstrict -le "print 'this is a number?!?' if 'x9x' =~ /\d+/; " this is a number?!?

    Better to use  Scalar::Util::looks_like_number() (see this), which correctly identifies numbers like  '1.2' '1.2e3' '0e0', or if only decimal digits are acceptable, use the  /^\d+$/ regex (see this).

      if $array[$i] =~ /^\d+$/ { <block of code> }

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