Parenthesis around if/for/while condition is not necessary

[Timoses]

On Sunday, 24 June 2018 at 22:03:13 UTC, Dennis wrote:
> if (!("key" in dict)) {...}

if ("key" !in dict) {...}

At least that one has a shorter form. The others may be rewritten 
to not have a leading "!" as well, e.g.

> if (!(t1.ty == Tarray && t2.ty == Tarray && needsDirectEq(t1, 
> t2))

if (t1.ty != Tarray || t2.ty != Tarray || ...)

Plus, for counting brackets a text editor that highlights 
enclosing opposite brackets really helps.