What does it mean : qq = qq || {}?
41182
What does the construct x = x || y mean?
15796
the operation of "=" in javascript
154673
In the shell, what does " 2>&1 " mean?
21035
Clarifying on how if p,q is logically equivalent to p only if q
28822
$|x| - |y| \leq |x-y|?$
76808
Meaning of ! in Java syntax
100844
How should I understand "$A$ unless $B$"?
132543
Can I use chained comparison operator syntax?
156273
What is the difference between "var=${var:-word}" and "var=${var:=word}"?
66172
What's the difference between  and ,  and ?
93501
Order of precedence of set operators
53664
What's the difference between equal?, eql?, ===, and ==?
89177
$\operatorname{adj}(AB) = \operatorname{adj} B \operatorname{adj} A$
111595
What does this sign exactly mean? |=
134384
What does $\rightarrow$ mean in $p \rightarrow q$
134050
Question about set notation: what does $]a,b[$ mean?
98591
What does an ampersand after this assignment operator mean?