Recode by not using conditional-CodePudding

The below function works good by if statements , I want the same functionality by using without condition statements.

Hello(x){
    If(x<0){
       Console.log("greater");
    }Else{
       Console.log("smaller");
    }
};

Hello(1);
Hello(-1);

CodePudding user response：

You could use an Object but it's odd. An if...else statement or it's shorter ternary form more clearly conveys the logic at play which is always preferable.

function Hello(x) {
  const lt = {
    true: "smaller",
    false: "greater"
  };

  console.log(lt[x < 0]);
};

Hello(1);
Hello(-1);

CodePudding user response：

This is probably a stupid thing to actually do and might be overly specific to your example but...:

const hello = (x) => {
  const lt = x < 0;
  console.log("greater".repeat(lt)   "smaller".repeat(1 - lt));
};

hello(-1);
hello(1);

Borrowing from @Teemu's comment a slightly more flexible thing could be:

const if_else = (cond_fn, if_fn, else_fn = (x) => x) =>
  [else_fn, if_fn][ cond_fn()]();

const hello = (x) =>
  if_else(
    () => x < 0,
    () => console.log('greater'),
    () => console.log('smaller')
  );

hello(-1);
hello(1);