Check if String starts with given characters regardless of upper case, lower case
12419
How to check if a String contains another String in a case insensitive manner in Java?
2006
Comparing two strings, ignoring case in C#
10610
How can I check if a single character appears in a string?
150078
How to get first character of string?
54939
Regular expression: match start or whitespace
63349
How to string-compare for a single space
62541
Determining a string has all unique characters without using additional data structures and without the lowercase characters assumption
133549
How can I test if a letter in a string is uppercase or lowercase using JavaScript?
17361
How to check if a string has spaces in Bash shell
24422
Check string for palindrome
41649
How to capitalize the first character of each word in a string
19160
Why does "abcd".StartsWith("") return true?
94488
How to compare strings ignoring the case
116912
Regex only match if character is not included directly before desired string
137775
Convert a char to upper case using regular expressions (EditPad Pro)
11189
'is' operator behaves differently when comparing strings with spaces
82011
Check a string to see if all characters are hexadecimal values