What does the ${$} construct mean?
38430
In PHP, what does the ${$ } syntax do?
5618
$VAR vs ${VAR} and to quote or not to quote
84199
What does the $\|$ operation mean in cryptographic notation?
82566
Why should I use $[ EXPR ] instead of $(( EXPR ))?
101128
What is "?:" notation in JavaScript?
55375
What is the $ symbol used for in JavaScript
66056
Excel Formula Meaning of $
129334
Where does $\in$ come from and where is it defined?
66357
What does the function declaration "sub function($$)" mean?
31518
What is the (function() { } )() construct in JavaScript?
24458
What do ">>" and "<<" mean in Javascript?
83501
What is the JavaScript >>> operator used for?
92087
What does =* mean?
45816
What do $< and $@ represent in a Makefile?
11423
Understand the meaning of `$_`
133569
What does the double slash mean in `${f// /_}`?
153593
When and why did ^ and $ take on their meanings of "beginning of line" and "end of line?"