Regular Expression for at least one character and one number

Question

I want a regex in which user have to type at least one character and one number in password field.

Right now I'm using using this:

^(?=.*[0-9])(?=.*[a-zA-Z])([a-zA-Z0-9]+)$ 

but it is not working properly.

Please help.

Answer 1

Hey Try this expression

^\d*[a-zA-Z][a-zA-Z0-9]*$

• Zero or more digits;
• One alpha character;
• Zero or more alphanumeric characters.

Try a few tests and you'll see this'll pass any alphanumeric string where at least one non-numeric character is required.

Answer 2

use below regex:

/^(?=.*[0-9])(?=.*[a-zA-Z])([a-zA-Z0-9]+)$/

demo: http://jsfiddle.net/nn92H/

Answer 3

尝试这个 ：

 ^.*(?=.{1,10})(?=.*\d)(?=.*[a-zA-Z]).*$

Answer 4

Try this

// at least one number, one character
// at least six characters
var re = /(?=.*\d)(?=.*)(?=.*).{6,}/;
return re.test(str);

Answer 5

这将标识一个数字，后跟一个字母，或者一个字母，后跟一个数字，中间有任意数量的非数字/字母字符。

/([0-9].*[a-zA-Z])|([a-zA-Z].*[0-9])/

Answer 6

This'll work:

(?=.*\d)(?=.*[A-Z]) //with 'i' flag

Demo Here

This Page contains many password regex . go through it!