If a function does not return anything, it makes no sense to use its output. Specifically, passing it to another function, or assigning its
"result" to a variable is probably a bug because such functions return undefined, which is probably not what was intended.
Note that this rule requires Node.js to be available during analysis.
function foo() {
console.log("Hello, World!");
}
a = foo();
function foo() {
console.log("Hello, World!");
}
foo();