RegEx for words of letters _And_ numbers

Question

Programming

Tell me, is it possible to check with one expression whether a word consists of letters and numbers. The conditions are as follows:
* Characters can be placed in any order (it can start / end with a letter or number)
* The word consists of Latin letters and numbers
* The word does NOT consist of letters only
* The word does NOT consist of numbers only

Answer 1

Why not? Can. When writing regexps, you need to operate not with logical conditions, but with the order of characters in a string. Your string looks like this:
((one or more letters, then one or more digits) or (one or more digits, then one or more letters)) then optionally letters or digits
Here is the regression:
(([az]+\d+) |(\d+[az]+))[az\d]*
regexr.com?33fas

Answer 2

I got it like this:
(?<=\d)[A-z]|(?<=[A-z])\d

Answer 3

One is unlikely. And why? Do you need it to work, or do you need it to be cool? :)
You need three checks - that there are only letters + numbers, that there are letters, that there are numbers.

/^[a-z0-9]+$/ && /[a-z]/ && /[0-9]/

Answer 4

---

Answer 5

/^(?:\d+\w|\w+\d)[\w\d]+$/

Answer 6

Fail regexr.com?33gal
oops should have come here habrahabr.ru/qa/32825/#answer_128961

Answer 7

Perhaps so.
\b(\d+\w+)\b|\b(\w+\d+)\b|\b(\d+\w+\d+)\b|\b(\w+\d+\w+)\b