I want create a regex with an optimized way that will check 2 characters range from A-Z,a-z and 3 digits, I tried with below regex
^[A-Za-z]{2}\d{3}$
but i am not sure the regex is optimized or not ?
Thanks in advance...
I want create a regex with an optimized way that will check 2 characters range from A-Z,a-z and 3 digits, I tried with below regex
^[A-Za-z]{2}\d{3}$
but i am not sure the regex is optimized or not ?
Thanks in advance...
Your regex is optimal. May one thing to do could be replace \d with [0-9]. your could read this for info. \d matches not only 0-9, it matches all digit, also arabic, persian, etc. Though is less performant. If you want to figure out how good is you regex eprforming use this website. You could roughly estimate what would be the performance by viewing the "steps" and also debugging the regex. But your example is extreme simple, performance is not a question you should bother is such example. In the most cases of regex you should not bother at all. There could be thoughts about this, but you would need a comlex set of data with complex pattern requeriments, to this be meaninful. A good rule of thumb for a performant regex is - be as specific as you can, which you regex is, if you have no more info about your dataset.