Travis build: 1045 [cron]

vscode_snippets/snippets.json

@@ -595,10 +595,10 @@
     "body": [
       "const differenceBy = (a, b, fn) => {",
       "  const s = new Set(b.map(fn));",
-      "  return a.filter(x => !s.has(fn(x)));",
+      "  return a.map(fn).filter(el => !s.has(el));",
       "};"
     ],
-    "description": "Returns the difference between two arrays, after applying the provided function to each array element of both.\n\nCreate a `Set` by applying `fn` to each element in `b`, then use `Array.prototype.filter()` in combination with `fn` on `a` to only keep values not contained in the previously created set"
+    "description": "Returns the difference between two arrays, after applying the provided function to each array element of both.\n\nCreate a `Set` by applying `fn` to each element in `b`, then use `Array.prototype.map()` to apply `fn` to each element in `a`, then `Array.prototype.filter()"
   },
   "differenceWith": {
     "prefix": "30s_differenceWith",
@@ -778,8 +778,8 @@
       "const factorial = n =>",
       "  n < 0",
       "    ? (() => {",
-      "      throw new TypeError('Negative numbers are not allowed!');",
-      "    })()",
+      "        throw new TypeError('Negative numbers are not allowed!');",
+      "      })()",
       "    : n <= 1",
       "      ? 1",
       "      : n * factorial(n - 1);"
@@ -2490,9 +2490,9 @@
       "const remove = (arr, func) =>",
       "  Array.isArray(arr)",
       "    ? arr.filter(func).reduce((acc, val) => {",
-      "      arr.splice(arr.indexOf(val), 1);",
-      "      return acc.concat(val);",
-      "    }, [])",
+      "        arr.splice(arr.indexOf(val), 1);",
+      "        return acc.concat(val);",
+      "      }, [])",
       "    : [];"
     ],
     "description": "Removes elements from an array for which the given function returns `false`.\n\nUse `Array.prototype.filter()` to find array elements that return truthy values and `Array.prototype.reduce()` to remove elements using `Array.prototype.splice()`.\nThe `func` is invoked with three arguments (`value, index, array`)"