add hw2

node_modules/ramda/es/unless.js

@@ -0,0 +1,33 @@
+import _curry3 from "./internal/_curry3.js";
+/**
+ * Tests the final argument by passing it to the given predicate function. If
+ * the predicate is not satisfied, the function will return the result of
+ * calling the `whenFalseFn` function with the same argument. If the predicate
+ * is satisfied, the argument is returned as is.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.18.0
+ * @category Logic
+ * @sig (a -> Boolean) -> (a -> b) -> a -> a | b
+ * @param {Function} pred        A predicate function
+ * @param {Function} whenFalseFn A function to invoke when the `pred` evaluates
+ *                               to a falsy value.
+ * @param {*}        x           An object to test with the `pred` function and
+ *                               pass to `whenFalseFn` if necessary.
+ * @return {*} Either `x` or the result of applying `x` to `whenFalseFn`.
+ * @see R.ifElse, R.when, R.cond
+ * @example
+ *
+ *      let safeInc = R.unless(R.isNil, R.inc);
+ *      safeInc(null); //=> null
+ *      safeInc(1); //=> 2
+ */
+
+var unless =
+/*#__PURE__*/
+_curry3(function unless(pred, whenFalseFn, x) {
+  return pred(x) ? x : whenFalseFn(x);
+});
+
+export default unless;