Thought I’d share one of my favorite language features (of any language that has it): conditional assignment, sometimes called null coalescing. Here’s a few versions of it:
var a = ( b??c); // a = b if b is truthy, c if b is falsey // or: (b ?? c).callMethod(); // nice!
var a = b || c; (b || c).callMethod();
a = b || c // lower precedence (i.e. only if b isn't defined, not "falsey") a = b or c
$a = b || c; $a = b or c; // just like python