Let’s say I have the following array:
arr = ["", "2121", "8", "myString"]
I want to return false in case the array contains any non-digit symbols.
Let’s say I have the following array: arr = [, 2121, 8, myString] I
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Let’s say I have the following array:
arr = ["", "2121", "8", "myString"]
I want to return false in case the array contains any non-digit symbols.
If empty strings are allowed:
Explanation: this filters the array for all strings that match a regular expression. This regex is true for a string that contains at least one non-digit character. If the resulting array is empty, the array contains no non-digit strings. Finally, we need to negate the result, because we want to know the array does contain non-digit strings.