If you always declare variables before using them, then let 's non-hoisting behavior is superfluous. function foo () { x = 5; } — Initializing a variable inside a function without a keyword ...

Thank you Lt; this was the reasonable answer. Verify the shape/majority of the URL via regex, and if that's good, then as long as it contains that variable string it is virtually certain that the ...

Unlike many other languages, JavaScript does not distinguish between integers and floating-point numbers. 42 and 3.14 are both Number types. BigInt, as its name suggests, only covers integers, and ...