Validating telephone numbers

[meeble]

I use this function to validate the telephone number in a form box. How do I amend it so it allows spaces as well as valid numbers?

Cheers

James

function checknumber(){
var x=document.myFormName.Telephone_Home.value
var anum=/(^\d+$)|(^\d+\.\d+$)/
if (anum.test(x))
testresult=true
else{
alert("Please input a valid number!")
testresult=false
}
return (testresult)
}

 

[jemminger]

spaces where? space only? or something like

"4 5 5 4 1 1 1 222 2"?

=========================================================
-jeff

http://www.jeffemminger.com

try { succeed(); } catch(E) { tryAgain(); } finally { rtfm(); }

 

[vbkris]

can u give us the format that u want???

Known is handfull, Unknown is worldfull

 

[grtfercho]

Personally, this is the one I use for phone validation, it's been working so far.

/^(\(\d{3}\)|\d{3})\s*\d{3}\s*-?\s*\d{4}$/

with or without parenthesis, with or without spaces, with or without the dash.

grtfercho çB^]\..
"Imagination is more important than Knowledge" A. Einstein
-----------------------------------------------

http://www.llajta.com

 

[TruthInSatire]

I wrote this script a while back, it isn't the most efficient probably, JS isn't my strong suite.

<script language = "javascript">
function formatPhoneNumber(fld){
if (window.event.keyCode != 8){ //Ignore formatting if user is backspacing.
if (fld.value.charAt(fld.value.length-1) != "("){ //Allow the first instance of the open peren.
lastChar = fld.value.charAt(fld.value.length-1).replace(/\D*/, ''); //set a variable to the value of the last character in the string after replacing all non numeric chars.
if (lastChar == ""){ //remove the invalid character
fld.value = fld.value.substring(0, fld.value.length-1); //set the field to the correct data
}
}
if(fld.value.length == 1 && fld.value.charAt(fld.value.length-1) != "("){ //check to see if user already added the opening peren.
fld.value = "(" + fld.value; //If they didn't, add it for them.
}
if(fld.value.length == 4){ //Check to see if the area code is complete
fld.value = fld.value + ")"; //Add the closing peren after the area code.
}
if(fld.value.length == 8){ //Check to see if the prefix has been entered.
fld.value = fld.value + "-"; //If the prefix has been entered, insert the dash.
}
}
}
</script>

<form name = "phoneNumber">
<input type = "text" name = "phoneNumberToFormat" onkeyup = "formatPhoneNumber(this);">
</form>

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