fp/gt is really weird ?

[ExcitedSpider]

import { gt } from "lodash/fp";

const greaterThan3 = gt(3);

greaterThan3(4); // false

I would expect gt(x) means greater than x ?

[DaSchTour]

Just look at the documentation _.gt(value, other) Checks if value is greater than other.

_.gt(3, 4) -> false

So your function actually checks if 3 is great than the value. So everything is right. Because 4 is not greater than 3.

[ahmaddynugroho]

according to docs, the function fp.gt has it's original argument order. Which is (a, b) instead of (b, a). So. the workaround is to use fp.lt, placeholder or wrap it in arrow fn, like this:

import _, { gt, lt } from "lodash/fp";

const gt3lt = lt(3); // tsc friendly
const gt3p = gt(_, 3) as any; // tsc will warn u without that "as any"
const gt3 = (b: number) => gt(b, 3) // best way ig, it gives correct type

console.log({
  gt3lt: {
    2: gt3lt(2), // false
    3: gt3lt(3), // false
    4: gt3lt(4), // true
  },
  gt3p: {
    2: gt3p(2), // false
    3: gt3p(3), // false
    4: gt3p(4), // true
  },
  gt3: {
    2: gt3(2), // false
    3: gt3(3), // false
    4: gt3(4), // true
  },
});