Why we add _ (underscore) before variable name?
105318
Using underscores in Java variables and method names
11423
Understand the meaning of `$_`
148080
Brace expansion with a Bash variable - {0..$foo}
120043
What is the proper use of \@ (i.e., backslash-at)?
27247
Replacing spaces with underscores in JavaScript?
98878
#{...} is not allowed in template text
23015
How to name variables on the fly?
8323
How bad for TeX is omitting braces {}, even if the result is the same?
145142
How to make forward-word, backward-word, treat underscore as part of a word?
146466
Is a variable the name, the value, or the memory location?
93483
Why there is "the" before some names but not others
142924
Why allow concatenation of string literals?
76870
Internal Representation of ?name and ??name
120556
What does `` mean in Python?
619
Why are these constructs using pre and post-increment undefined behavior?
156517
Adding string to variable name
38162
What's the use/meaning of the @ character in variable names in C#?