Need javascript regex to check string starts with U or C and with length of 10

Question

I need javascript regular expression to check string starting with U or C. Also it should be of length 10.

I tried this ^U|C{9}$ but not getting proper results.

Amit Joki · Answer 1 · 2015-03-23T06:38:27.190

1

You should group the tokens when using | operator, so as to get intended results. Also, you must use .(any character except new-line) and make sure it is 9 characters long.

You can also use character class as in /^[UC].{9}$/

/^(U|C).{9}$/

You can also use simple javascript to do this

var chr = str.charAt(0);
if((chr == "U" || chr == "C") && str.length == 10){
   // valid
}

edited Mar 23 '15 at 06:38

answered Mar 23 '15 at 06:33

Amit Joki

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char is a reserved keyword – Samuel Liew Mar 23 '15 at 06:37
@prashant glad to have helped :) – Amit Joki Mar 23 '15 at 06:41

score 1 · Answer 2 · answered Mar 23 '15 at 06:33

1

Use this regex instead:

^[UC].{9}$

The . will match any character, which you missed out.

answered Mar 23 '15 at 06:33

Samuel Liew

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Need javascript regex to check string starts with U or C and with length of 10

2 Answers2