javascript regular expression for phone, please help me check for 411

[webpanda]

hi can anyone help me with this probelm?

isNumeric?

eh

ok, the problem is i need to use regular expression (javascript) to check for a phone number, but the phone number can't be a joke number like 411, 911, 555, 311

my problem is when i have to somehow search the first three numbers and not let them equal this sequence, but no where i see on the web do i find any thing that helps me with this.. should i just use plain javascript to test it after it passes the test?

or is there something like

/^\d{3}[^(411)]-\d{4}$/
???

[Alan]

Well first off, I'm not is_numeric... but if we can get past that then lets move on.

So you dont want numbers like 411, 765 etc... I just want to get an idea of what you mean by a "joke" number?
So here's a few thoughts for your head:

• Is 911/999/112 etc... a joke number (emergency numbers)?
• What about premium numbers and network related numbers? (e.g. I'm with the Meteor network in Ireland and my customer care number is 1905)
• What is a joke number (please be specific), hard to test for a pattern without knowing the pattern.

May I suggest applying a pattern check that will test the length of the number and the preceding digits (area codes). That should work nicely. :-)

[is_numeric]

Well first off, I'm not is_numeric... but if we can get past that then lets move on.

It must be hard to get past that.... Its ok, You're only human!

[Alan]

Originally Posted by is_numeric

It must be hard to get past that.... Its ok, You're only human!

PHP Code:

function transform_into_is_numeric($alan,$is_numeric) {
    if($alan !== $is_numeric) {
        $alan = clone $is_numeric;
    }
    
    return $alan;
} 


[webpanda]

Originally Posted by Alan

PHP Code:

function transform_into_is_numeric($alan,$is_numeric) {
    if($alan !== $is_numeric) {
        $alan = clone $is_numeric;
    }
    
    return $alan;
} 


php!

yea! ok for this exercise my prollum is that i can' thave any such number where it's like

\d11

no preceding 3 digits to be ?11 it's only for school, but how do we do this?

[webpanda]

ok so we had to use look ahead

/^(?!555|\d11)\d{3}-\d{4}$/

ya i figured it out for the class!