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![Lanai Lewis](https://uploads.teamtreehouse.com/production/profile-photos/4502742/micro_lanai.jpg)
Lanai Lewis
10,400 PointsI agree with the previously asked question. The regex in the video does not work in regexPal or in app.js
/^(\d{3})\s\d{3}-\d{4}$/ The above expression does not work in regexPal.com. In app.js it does not cause the field to automatically format the phone number. I've checked and double-checked that I've typed it exactly as shown in the video by Joel.
3 Answers
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsWhat I see in the video is a little different
/^\(\d{3}\)\s\d{3}-\d{4}$/
Note the backslashes before the parentheses. Without these, the parentheses are interpreted as grouping symbols instead being used to match actual characters.
![Lanai Lewis](https://uploads.teamtreehouse.com/production/profile-photos/4502742/micro_lanai.jpg)
Lanai Lewis
10,400 PointsThe slashes are there in the JavaScript file. It still doesn't work, the phone field will not reformat anything entered.
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsI confirmed the revised regex to work in regexpal. If you provide a link to a workspace snapshot we can take a look at it in your environment.
![Félix Guérin](https://secure.gravatar.com/avatar/33ce29ebc8309a764b934d1779219600?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Félix Guérin
17,910 PointsI think you may have set the flags wrong. In the case of the video, were you're testing two strings of numbers on 2 different lines, you should use the m flag (multi-line).
Justin Kinser
12,154 PointsJustin Kinser
12,154 PointsThis code:
\ (?\d{3})?\s?\d{3}-?\s?\d{4}
...works with all of these sets:
1234567890
123 456 7890
(123)4567890
(123)456-7890
(123) 4567890
(123) 456 7890
(123) 456-7890
But it's messy. Hopefully the following videos explain how to clean it up.