Mirror of forum.nim-lang.org

5646 :: Which is the preferred style: call(x) or call x

• marks (orginal) [2019-12-06T22:55:47+01:00] view original

  I've found that when I have a call with a single argument, say, myfunc(x), I can change it to myfunc x. This surprised me since coming from Python I'd have thought myfunc is a reference to the function, but clearly that's not the case with nim. (So, how do you get a function reference?) But out of the two call syntaxes, which is to be preferred?

---

• juancarlospaco (orginal) [2019-12-07T02:18:26+01:00] view original

  It is not a single argument, it can take any number of arguments, you can do myfunc x, y, z, you can choose what you need and want to, depends on what are you doing, and myfunc"string argument" is also possible, it allows you to chain functions, like "argument".myfunc.otherfunc.anotherfunc().

---

• solo989 (orginal) [2019-12-07T04:24:28+01:00] view original

  Nim standard doesn't have a preference. Go with whatever makes the most sense to you in the context.

  For example I always drop the parens when calling echo. myfunc by itself without the x is reference to the function.

  So you could pass myFunc to myFunc2 by calling

  myFunc2(myFunc)

  or

  myFunc2 myFunc

  or even

  myFunc.myFunc2

  look up https://nim-lang.org/docs/manual.html#procedures-method-call-syntax and https://nim-lang.org/docs/manual.html#procedures-command-invocation-syntax for all the rules

---