Forum Discussion

xApt's avatar
xApt
Icon for Nimbostratus rankNimbostratus
Jun 28, 2017

What is the best operator to use when comparing numbers?

Hi all, I was wondering whether the TCL language treats everything as a string and choosing the fastest (least load on the CPU, if it needs to do conversions) and most correct operator. for example:

set x 2
if {$x == 2}
if {$x eq 2}
if {$x eq "2"}

Many thanks in advance, it would be good to put this discussion in the team to rest.

application delivery
iRules
  • Morten_Marstran's avatar
    Morten_Marstran
    Icon for Nimbostratus rankNimbostratus
    Jun 28, 2017

    Hi,

     

    You are correct in regards to TCL having one data type (string).

     

    This can be converted into an integer on the fly, with the operator '=='

     

    If you don't need to do numerical operations, it is not recommended to do conversions.

     

    Best Regards,

     

    Morten