How to judge a string is UUID type?
42886
How to test valid UUID/GUID?
140110
In Java, how do I dynamically determine the type of an array?
114378
How to check if the string is empty?
20684
Test if string is a guid without throwing exceptions?
39947
Checking if a string contains an integer
7866
How to check if a string is a uniqueidentifier?
576
How can I check for an empty/undefined/null string in JavaScript?
4684
What's the canonical way to check for type in Python?
109704
How to check if a string is a legal "dd/mm/yyyy" date?
109352
Parse string to enum type
7336
What is the best regular expression to check if a string is a valid URL?
97240
How can I check if a string represents an int, without using try/except?
143939
How do you use: isalnum, isdigit, isupper to test each character of a string?
27572
What's the u prefix in a Python string?
114264
How to test enum types?
114466
How do I determine if a column is defined as a serial data type instead of an integer based off the catalog?
148755
How to check if string contents have any HTML in it?