replace function

[Manasipradeep]

Hey... I am newbie to Javascript. I wanted to replace the dot operator and some escape characters using regular expressions. Could anyone help me out in this?

[Kor]

Hey... I am newbie to Javascript. I wanted to replace the dot operator and some escape characters using regular expressions. Could anyone help me out in this?

What for? can you detail your aim, please?

[Manasipradeep]

it is to check for a valid domain name when booking a domain name in my site.

[Manasipradeep]

it is to check for a valid domain name when booking a domain name in my site.

I have something like this in my code.

function trim(str)
{
return str.replace(/^\s*|\s*$/g,"");
}

So I just wanted to know how this works..

[Kor]

So, you are talking about a string, in which case you probably mean the dot character, not the dot operator. Anyway, in JavaScript syntax the dot is not an operator...

Give us an example of a string. How it looks before, and how do you want it to look like after the RegExp replacements.

[Manasipradeep]

I am talking about strings with special characters

Eg..

/* Obtain, parse and clean the domain name from the textbox */
function getDomainToLookupValue() {
var domain = getDomainTextBox().value;
var output = trim(domain).toLowerCase();

output = output.replace(/https?\:\/\//, '');
output = output.replace(/\/.*/, '');

return output;
}


function trim(str)
{
return str.replace(/^\s*|\s*$/g,"");
}

So I just wanted to know how this works..

[Kor]

Study the Regular Expressions in JavaScript:
http://lawrence.ecorp.net/inet/samples/regexp-intro.php

[Manasipradeep]

Thanks Kor. I will look into this... Thanks for sending the link.