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To fix our validation flaw, what we can do is we can set isValid true by default here at the beginning

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and then we can add something to each check

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here. We can say isValid should it be true if this check is true

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and if isValid already was true

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so we change && isValid. If we do

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this in every rule, then just this rule resolving to true alone won't do the trick,

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all the rules now have to resolve to true.

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So if we save it with this change in place and I now start entering into the zip code, one digit it's

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false, no digits it's false,

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now if I enter five digits, it's true because it's not too long not too short

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and there, if I interest six digits though, it's false.

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Now if I have a look at the name and I enter something there, you see it's true because I entered something,

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if I empty it you'll see it's false because now it's empty.

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This is now our own validation working,

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we got our own rules set up in this flexible way,

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now we can turn our heads towards also outputting some feedback on our validation result.