Sometimes, we want to define a regular expression that allows letters, numbers, and spaces with at least one letter or number with JavaScript.
In this article, we’ll look at how to define a regular expression that allows letters, numbers, and spaces with at least one letter or number with JavaScript.
How to define a regular expression that allows letters, numbers, and spaces with at least one letter or number with JavaScript?
To define a regular expression that allows letters, numbers, and spaces with at least one letter or number with JavaScript, we add all the required patterns in the regex.
For instance, we write
/^[ _]*[A-Z0-9][A-Z0-9 _]*$/;
to add [ _] to check for spacers.
And we use [A-Z0-9][A-Z0-9 _] to check for at least 1 number or letter.
Conclusion
To define a regular expression that allows letters, numbers, and spaces with at least one letter or number with JavaScript, we add all the required patterns in the regex.
