/^\d+$/ - please explain what does it mean

[ravigpalli]

Hi All,

Can some one please explain what exactly is the below line in bold means ,

var i = ctl.id;
var j =g_form.getValue(i);
 
var port = j;
if (/^\d+$/.test(port)){ ----- Please explain what is this
  var k =parseInt(g_form.getValue(i));
  if (k<1 || k>65000){
  alert('Invalid Port Number: Value must be <= 65000');
  g_form.clearValue(i);
  }
}
 
else{
  var ports = port.split("-");
  if ((/^\d+$/.test(ports[0])) && (/^\d+$/.test(ports[1])) && (ports[0] < ports[1]) && ports[0] <=65000 && ports[1] <=65000 ){}
  else{
  alert("Invalid Port Range: Please enter numeric value") ;
  g_form.clearValue(i);
  }
  }

My Requirement is , port column in catalog table is just accepting numbers and numbers with - .

Now we need to have the below , please let me know how to get this done.
- An open-ended range of ports with Less Than or Greater than: >1023
- A combination of the above formats separated by commas: 21, 80-81, >1023
- Negate a single number: !80

[Dormilich]

there is no line in bold ...

[ravigpalli]

Hi ,
Please see the lines below , what I was referring to .
if (/^\d+$/.test(port))
and
if ((/^\d+$/.test(ports[0])) && (/^\d+$/.test(ports[1])) && (ports[0] < ports[1]) && ports[0] <=65000 && ports[1] <=65000 ){}
else{
alert("Invalid Port Range: Please enter numeric value") ;
g_form.clearValue(i);
}
}

Please let me know what can I do to include 3 ranges I mentioned above.

[Dormilich]

/^\d+$/ simply means: only digits.

[ravigpalli]

Ok , Please let me know what I need to do for including below .

- An open-ended range of ports with Less Than or Greater than: >1023
- A combination of the above formats separated by commas: 21, 80-81, >1023
- Negate a single number: !80

[Dormilich]

An open-ended range of ports with Less Than or Greater than: >1023

Negate a single number: !80

make a separate test for that

A combination of the above formats separated by commas: 21, 80-81, >1023

explode by ,, trim, and do validation for each item.

[ravigpalli]

Sorry ,

I did not understand what you are trying to say .
An open-ended range of ports with Less Than or Greater than: >1023
Negate a single number: !80
make a separate test for that - How to test this.

A combination of the above formats separated by commas: 21, 80-81, >1023
explode by ,, trim, and do validation for each item. - Please explain how to do this.

[Dormilich]

make a separate test for that - How to test this.

well, I expect you to be able to write an if() condition that tests if a number is not 80 ...

explode by ,, trim, and do validation for each item.

explode: https://developer.mozilla.org/en-US/...s/String/split
trim: https://developer.mozilla.org/de/doc...ts/String/Trim
for each: https://developer.mozilla.org/en-US/.../Array/forEach

[ravigpalli]

Hi,

Please let me know how to achieve this
An open-ended range of ports with Less Than or Greater than: >1023.

Also , I am new to java script , can you please help

[Dormilich]

that requirement is the same as "not 1023".

[ravigpalli]

Actually we need to have > and < sysmbols included. ANy idea.

[Dormilich]

it makes no sense to include > and < when it's not necessary.