wasmuth/test/slice.js

Practical, functional utilities that fallback on native implementations as much as possible

const test = require("tape");

const {slice} = require("../");

test("slice", (t) => {
  const arr = ["a", "b", "c", "d"];
  t.deepEqual(slice(1, 3, arr), ["b", "c"]);
  t.deepEqual(slice(1, Infinity, arr), ["b", "c", "d"]);
  t.deepEqual(slice(0, -1, arr), ["a", "b", "c"]);
  t.deepEqual(slice(-3, -1, arr), ["b", "c"]);
  const orig = "ramda";
  t.deepEqual(slice(0, 3, orig), "ram");
  t.is(orig, "ramda");
  t.deepEqual(arr, ["a", "b", "c", "d"]);
  t.end();
});