Testing a string containing only spaces (tabs, or " ")?
3265
How can I test if a variable is empty or contains only spaces?
26893
Why shouldn't I mix tabs and spaces?
35441
How to tell if a string contains valid Python code
61451
Interesting test of Javascript RegExp
5512
How do I do a case-insensitive string comparison?
138805
How can I search for a string containing a colon?
124836
Program to check/look up UTF-8/Unicode characters in string on command line?
78395
Checking whole string with a regex
33287
Have "Tab" key insert spaces when writing a question or answer
11189
'is' operator behaves differently when comparing strings with spaces
142164
Why does my grep expression need to use $'string' to match tab characters?
41380
How to check if a given Regex is valid?
5861
How can I test properties of a symbol from the string name without the symbol completely evaluating
134928
Check if string contains only digits
17442
Convert tabs to spaces in Notepad++
108135
String contains quotes in Visual Studio debugger but string.contains returns false
32552
Why does Python pep-8 strongly recommend spaces over tabs for indentation?