Why does `... := With[{var = ...}, ...]` create `var$`?
134363
Why does the global variable exist here, where it was declared only in Module?
110201
Difference between var = {} and var = []?
82369
What does #{...} mean?
16454
Enforcing correct variable bindings and avoiding renamings for conflicting variables in nested scoping constructs
30206
Where and how is the _ (underscore) variable specified?
5528
Difference between $:=$ and $=$
71607
What's this =! operator?
39830
Is "Arithmetic Expansion" the expected action on vars inside `[[` tests?
104823
Detailed Explanation of Variable Capture in Closures
50705
What is ->() { } in Ruby?
133999
Does variables' order matter when doing == and === comparisons?
47840
How to avoid nested With[]?
122025
Why can't I assign arrays as &a = &b?
67874
var name produces strange result in Javascript
141386
What are <-- Ruby Strings called? And how do I insert variables in them?
26433
How does variable assignment work in JavaScript?
72519
What's the difference between "==" and "=~"?