logical operators - Min and Maxium Age Comparison jQuery -


hi i'm new php , need make validation if customer age bracket doesn't satisfy filter disable question lets say

customer age bracket = 40 -44 question age bracket = 18-75

so customer still in bracket , should allowed take question. let's 

minquesage = 18; maxquesage = 75;  mincusage = 40; maxcusage = 44;

i have 

if(parseint(mincusage) >= parseint(minquesage) && parseint(maxcusage) <= parseint(maxquesage)) {      console.log("need disable");                     }

why still got need disable? condition correct?

your conditions when age valid, need invert condition disabling. can invert condition ! operator.

if(!(parseint(mincusage) >= parseint(minquesage) && parseint(maxcusage) <= parseint(maxquesage))) {      console.log("need disable");                     }

you can use demorgan's law invert parts of condition.

if(parseint(mincusage) < parseint(minquesage) || parseint(maxcusage) > parseint(maxquesage)) {      console.log("need disable");                     }

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