将变量分配给函数的输出

Question

So I'm trying to run a function, while returning its' return value to a variable, so that I can run another function with that information, but separately. I want to know if, when I do this, it actually runs the whole function. Example:

function a() {
  blah blah blah;
  return b;
}
var c = a();
function d(x) {
  something with c;
}
d(c);

When I assign a() to c, does that run a()? or just find the return value, and return it. I would greatly appreciate this! Thanks.

Answer 1

是的，它运行a（）函数，并且您应该能够在d（x）函数中将c与a（）返回的值一起使用。

Answer 2

var c = a()

will execute function a, and store the results in the var c.

If you want to refer to the function itself and not what is returned from executing the function, you would write:

var c = a