Javascript regular expression match string to start with letter or number

Question

I am trying to see if my string starts with a letter or a number. I think I'm close, could anyone help me out?

if(thestring.match("/^[\pL\pN]/"))

Solution 1

Use:

^[A-Z0-9]

With a case-insensitive modifier:

if(thestring.match(/^[A-Z0-9]/i)) {}

Demo

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\pL and \pN are PCRE shortcodes and do not work in Javascript.

Solution 2

if(/^[a-z0-9]/i.test(thestring)) {
    //do something
}

.test() is much more simple.
It returns just false or true, while .match() resturns null or an array.

More information differences between .test() and .match()

Comments

[bryan]

Hmm the demo work's great, but the javascript doesn't.

[bryan]

Thank you sir. I appreciate the help.