CODEWITHSUNDEEP
javascriptregex
coffeemonitor
coffeemonitor

Reputation: 13120

JS - Regex against Telephone Numbers

I am doing a simple cleanup of phone numbers on my web pages,

In many cases I see human friendly phone numbers, like 1-800-CONTACTS. My current scripting strips out everything except the numbers.

var theValueNumOnly = $.trim($(this).text()).replace(/[^0-9]/g,'');

The value becomes: 1800

Does anyone know a simple snippet that already had the letters-to-numbers converted?

Upvotes: 0

Views: 122

Answers (3)

Joseph Silber
Joseph Silber

Reputation: 219920

var toPhoneNumber = (function () {
    var dict = {
        a: 2, b: 2, c: 2,
        d: 3, e: 3, f: 3,
        g: 4, h: 4, i: 4,
        j: 5, k: 5, l: 5,
        m: 6, n: 6, o: 6,
        p: 7, q: 7, r: 7, s: 7,
        t: 8, u: 8, v: 8,
        w: 9, x: 9, y: 9, z: 9
    }

    return function (str) {
        return str.toLowerCase().replace(/[^\da-z]/g, '').replace(/([a-z])/g, function (v) {
            return dict[v];
        });
    }
}());

To use it, just pass your string to the toPhoneNumber function:

var phoneNumber = toPhoneNumber('1-800-CONTACTS');

Here's the fiddle: http://jsfiddle.net/ReGYp/1/

Upvotes: 2

Jorge Gajon
Jorge Gajon

Reputation: 1769

The direct approach (handles upper and lower case):

phone = "1-800-CONTACS"

phone = phone.replace(/[abc]/gi,  '2');
phone = phone.replace(/[def]/gi,  '3');
phone = phone.replace(/[ghi]/gi,  '4');
phone = phone.replace(/[jkl]/gi,  '5');
phone = phone.replace(/[mno]/gi,  '6');
phone = phone.replace(/[pqrs]/gi, '7');
phone = phone.replace(/[tuv]/gi,  '8');
phone = phone.replace(/[wxyz]/gi, '9');
phone = phone.replace(/[^0-9]/g,  ' ');

console.log(phone)
=> 1 800 2668227

Upvotes: 0

Peter Wooster
Peter Wooster

Reputation: 6089

Here's a post on his topic RegEx for Phone Number Numbers with Letters that provides a PHP solution. You could do this in a regex by mapping each of the 24 letters that convert to numbers. It's probably easier in PHP or python or your favorite language.

Upvotes: 0

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