aerophant / ramda

test/PairTest.php

Indentation +3 added lines, -3 removed lines

@@ -7,12 +7,12 @@
 
 class PairTest extends TestCase
 {
-  public function testPair()
-  {
+    public function testPair()
+    {
     $firstValue = 'foo';
     $secondValue = 'bar';
     $expect = ['foo', 'bar'];
     $actual = pair($firstValue)($secondValue);
     $this->assertEquals($expect, $actual);
-  }
+    }
 }

test/PathTest.php

Indentation +15 added lines, -15 removed lines

@@ -7,41 +7,41 @@
 
 class PathTest extends TestCase
 {
-  public function testSimplePath()
-  {
+    public function testSimplePath()
+    {
     $paths = ['data'];
     $object = ['data' => 'dataValue'];
     $expect = 'dataValue';
     $actual = path($paths)($object);
     $this->assertEquals($expect, $actual);
-  }
-  public function testNestedPath()
-  {
+    }
+    public function testNestedPath()
+    {
     $paths = ['data', 'nestedData'];
     $object = ['data' => ['nestedData' => 'dataValue']];
     $expect = 'dataValue';
     $actual = path($paths)($object);
     $this->assertEquals($expect, $actual);
-  }
-  public function testSimplePathAndNotFound()
-  {
+    }
+    public function testSimplePathAndNotFound()
+    {
     $paths = ['data'];
     $object = ['anotherData' => 'dataValue'];
     $actual = path($paths)($object);
     $this->assertNull($actual);
-  }
-  public function testNestedPathAndNotFound()
-  {
+    }
+    public function testNestedPathAndNotFound()
+    {
     $paths = ['data', 'nestedData'];
     $object = ['data' => ['anotherNestedData' => 'dataValue']];
     $actual = path($paths)($object);
     $this->assertNull($actual);
-  }
-  public function testUnsupportedObject()
-  {
+    }
+    public function testUnsupportedObject()
+    {
     $this->expectException(\InvalidArgumentException::class);
     $paths = ['data', 'nestedData'];
     $object = new \stdClass();
     path($paths)($object);
-  }
+    }
 }

test/PathOrTest.php

Indentation +15 added lines, -15 removed lines

@@ -8,46 +8,46 @@
 
 class PathOrTest extends TestCase
 {
-  public function testSimplePath()
-  {
+    public function testSimplePath()
+    {
     $paths = ['data'];
     $object = ['data' => 'dataValue'];
     $defaultValue = 'defaultValue';
     $expect = 'dataValue';
     $actual = pathOr($defaultValue)($paths)($object);
     $this->assertEquals($expect, $actual);
-  }
-  public function testNestedPath()
-  {
+    }
+    public function testNestedPath()
+    {
     $paths = ['data', 'nestedData'];
     $object = ['data' => ['nestedData' => 'dataValue']];
     $defaultValue = 'defaultValue';
     $expect = 'dataValue';
     $actual = pathOr($defaultValue)($paths)($object);
     $this->assertEquals($expect, $actual);
-  }
-  public function testSimplePathAndNotFound()
-  {
+    }
+    public function testSimplePathAndNotFound()
+    {
     $paths = ['data'];
     $object = ['anotherData' => 'dataValue'];
     $defaultValue = 'defaultValue';
     $actual = pathOr($defaultValue)($paths)($object);
     $this->assertEquals($defaultValue, $actual);
-  }
-  public function testNestedPathAndNotFound()
-  {
+    }
+    public function testNestedPathAndNotFound()
+    {
     $paths = ['data', 'nestedData'];
     $object = ['data' => ['anotherNestedData' => 'dataValue']];
     $defaultValue = 'defaultValue';
     $actual = pathOr($defaultValue)($paths)($object);
     $this->assertEquals($defaultValue, $actual);
-  }
-  public function testUnsupportedObject()
-  {
+    }
+    public function testUnsupportedObject()
+    {
     $this->expectException(\InvalidArgumentException::class);
     $paths = ['data', 'nestedData'];
     $object = new \stdClass();
     $defaultValue = 'defaultValue';
     pathOr($defaultValue)($paths)($object);
-  }
+    }
 }

src/object.php

Indentation +16 added lines, -16 removed lines

@@ -8,24 +8,24 @@ 
  */
 function path()
 {
-  $path = function (array $paths, $obj) {
+    $path = function (array $paths, $obj) {
     return reduce(
-      function ($acc, $item) {
+        function ($acc, $item) {
         if ($acc === null) {
-          return null;
+            return null;
         }
         if (is_array($acc)) {
-          return array_key_exists($item, $acc) ? $acc[$item] : null;
+            return array_key_exists($item, $acc) ? $acc[$item] : null;
         }
         throw new \InvalidArgumentException('path(array $paths, $obj) only support array object');
-      },
-      $obj,
-      $paths
+        },
+        $obj,
+        $paths
     );
-  };
-  $arguments = func_get_args();
-  $curried = curryN($path, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($path, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -36,11 +36,11 @@ 
  */
 function pathOr()
 {
-  $pathOr = function ($defaultValue, array $paths, $obj) {
+    $pathOr = function ($defaultValue, array $paths, $obj) {
     $value = path($paths, $obj);
     return $value ? $value : $defaultValue;
-  };
-  $arguments = func_get_args();
-  $curried = curryN($pathOr, 3);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($pathOr, 3);
+    return call_user_func_array($curried, $arguments);
 }

Spacing +3 added lines, -3 removed lines

@@ -8,9 +8,9 @@ 
  */
 function path()
 {
-  $path = function (array $paths, $obj) {
+  $path = function(array $paths, $obj) {
     return reduce(
-      function ($acc, $item) {
+      function($acc, $item) {
         if ($acc === null) {
           return null;
         }
@@ -36,7 +36,7 @@ 
  */
 function pathOr()
 {
-  $pathOr = function ($defaultValue, array $paths, $obj) {
+  $pathOr = function($defaultValue, array $paths, $obj) {
     $value = path($paths, $obj);
     return $value ? $value : $defaultValue;
   };

src/list.php

Indentation +144 added lines, -144 removed lines

@@ -8,20 +8,20 @@ 
  */
 function all()
 {
-  $all = function (callable $predicateFunction, array $array): bool {
+    $all = function (callable $predicateFunction, array $array): bool {
     if (empty($array)) {
-      return false;
+        return false;
     }
     foreach ($array as $it) {
-      if (!$predicateFunction($it)) {
+        if (!$predicateFunction($it)) {
         return false;
-      }
+        }
     }
     return true;
-  };
-  $arguments = func_get_args();
-  $curried = curryN($all, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($all, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -31,20 +31,20 @@ 
  */
 function any()
 {
-  $any = function (callable $predicateFunction, array $array) {
+    $any = function (callable $predicateFunction, array $array) {
     if (empty($array)) {
-      return false;
+        return false;
     }
     foreach ($array as $it) {
-      if ($predicateFunction($it)) {
+        if ($predicateFunction($it)) {
         return true;
-      }
+        }
     }
     return false;
-  };
-  $arguments = func_get_args();
-  $curriedAny = curryN($any, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    };
+    $arguments = func_get_args();
+    $curriedAny = curryN($any, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -54,14 +54,14 @@ 
  */
 function arrayForEach()
 {
-  $arrayForEach = function (callable $fn, array $array) {
+    $arrayForEach = function (callable $fn, array $array) {
     foreach ($array as $item) {
-      $fn($item);
+        $fn($item);
     }
-  };
-  $arguments = func_get_args();
-  $curriedAny = curryN($arrayForEach, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    };
+    $arguments = func_get_args();
+    $curriedAny = curryN($arrayForEach, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -72,12 +72,12 @@ 
  */
 function append()
 {
-  $append = function ($item, array $array) {
+    $append = function ($item, array $array) {
     return array_merge($array, [$item]);
-  };
-  $arguments = func_get_args();
-  $curriedAny = curryN($append, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    };
+    $arguments = func_get_args();
+    $curriedAny = curryN($append, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -88,12 +88,12 @@ 
  */
 function concat()
 {
-  $concat = function (array $firstArray, array $secondArray) {
+    $concat = function (array $firstArray, array $secondArray) {
     return array_merge($firstArray, $secondArray);
-  };
-  $arguments = func_get_args();
-  $curriedAny = curryN($concat, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    };
+    $arguments = func_get_args();
+    $curriedAny = curryN($concat, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -104,10 +104,10 @@ 
  */
 function contains()
 {
-  $contains = partialRight('in_array', [true]);
-  $arguments = func_get_args();
-  $curriedAny = curryN($contains, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    $contains = partialRight('in_array', [true]);
+    $arguments = func_get_args();
+    $curriedAny = curryN($contains, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -117,12 +117,12 @@ 
  */
 function drop()
 {
-  $drop = function (int $index, array $array) {
+    $drop = function (int $index, array $array) {
     return array_merge(array_slice($array, 0, $index), array_slice($array, $index + 1));
-  };
-  $arguments = func_get_args();
-  $curried = curryN($drop, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($drop, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -131,10 +131,10 @@ 
  */
 function dropFirst()
 {
-  $dropFirst = drop(0);
-  $arguments = func_get_args();
-  $curried = curryN($dropFirst, 1);
-  return call_user_func_array($curried, $arguments);
+    $dropFirst = drop(0);
+    $arguments = func_get_args();
+    $curried = curryN($dropFirst, 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -143,14 +143,14 @@ 
  */
 function dropLast()
 {
-  $dropLast = function (array $array) {
+    $dropLast = function (array $array) {
     $index = count($array)-1;
     return array_merge(array_slice($array, 0, $index), array_slice($array, $index + 1));
-  };
+    };
 
-  $arguments = func_get_args();
-  $curried = curryN($dropLast, 1);
-  return call_user_func_array($curried, $arguments);
+    $arguments = func_get_args();
+    $curried = curryN($dropLast, 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -160,25 +160,25 @@ 
  */
 function endsWith()
 {
-  $endsWith = function ($suffix, $list) {
+    $endsWith = function ($suffix, $list) {
     if (is_string($suffix) && is_string($list)) {
-      return $suffix === '' || (($temp = strlen($list) - strlen($suffix)) >= 0 && strpos($list, $suffix) !== false);
+        return $suffix === '' || (($temp = strlen($list) - strlen($suffix)) >= 0 && strpos($list, $suffix) !== false);
     }
     if (is_array($suffix) && is_array($list)) {
-      $index = count($list) - count($suffix);
-      foreach ($suffix as $it) {
+        $index = count($list) - count($suffix);
+        foreach ($suffix as $it) {
         if ($it != $list[$index]) {
-          return false;
+            return false;
         }
         $index++;
-      }
-      return true;
+        }
+        return true;
     }
     throw new \InvalidArgumentException(__FUNCTION__ . 'accepts only string or array as it arguments');
-  };
-  $arguments = func_get_args();
-  $curried = curryN($endsWith, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($endsWith, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -188,12 +188,12 @@ 
  */
 function filter()
 {
-  $filter = function (callable $predicateFunction, array $array) {
-     return array_values(array_filter($array, $predicateFunction));
-  };
-  $arguments = func_get_args();
-  $curried = curryN($filter, 2);
-  return call_user_func_array($curried, $arguments);
+    $filter = function (callable $predicateFunction, array $array) {
+        return array_values(array_filter($array, $predicateFunction));
+    };
+    $arguments = func_get_args();
+    $curried = curryN($filter, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -203,12 +203,12 @@ 
  */
 function filterPreserveKey()
 {
-  $filter = function (callable $predicateFunction, array $array) {
+    $filter = function (callable $predicateFunction, array $array) {
     return array_filter($array, $predicateFunction);
-  };
-  $arguments = func_get_args();
-  $curried = curryN($filter, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($filter, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -218,30 +218,30 @@ 
  */
 function find()
 {
-  $find = function (callable $predicateFunction, array $list) {
+    $find = function (callable $predicateFunction, array $list) {
     foreach ($list as $item) {
-      if ($predicateFunction($item)) {
+        if ($predicateFunction($item)) {
         return $item;
-      }
+        }
     }
     return null;
-  };
-  $arguments = func_get_args();
-  $curried = curryN($find, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($find, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 function first()
 {
-  $first = function (array $array) {
+    $first = function (array $array) {
     if (empty($array)) {
-      return null;
+        return null;
     }
     return $array[0];
-  };
-  $arguments = func_get_args();
-  $curried = curryN($first, 1);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($first, 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -251,33 +251,33 @@ 
  */
 function groupBy()
 {
-  $groupBy = function (callable $keySelector, array $array) {
+    $groupBy = function (callable $keySelector, array $array) {
     return reduce(
-      function ($acc, $item) use ($keySelector) {
+        function ($acc, $item) use ($keySelector) {
         $key = $keySelector($item);
         $acc[$key] = array_key_exists($key, $acc) ? array_merge($acc[$key], [$item]) : [$item];
         return $acc;
-      },
-      [],
-      $array
+        },
+        [],
+        $array
     );
-  };
-  $arguments = func_get_args();
-  $curried = curryN($groupBy, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($groupBy, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 function head()
 {
-  $head = function (array $array) {
+    $head = function (array $array) {
     if (empty($array)) {
-      return null;
+        return null;
     }
     return $array[0];
-  };
-  $arguments = func_get_args();
-  $curried = curryN($head, 1);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($head, 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -288,16 +288,16 @@ 
  */
 function insert()
 {
-  $insert = function (int $index, $element, array $array) {
+    $insert = function (int $index, $element, array $array) {
     return array_merge(
-      array_slice($array, 0, $index),
-      [$element],
-      array_slice($array, $index)
+        array_slice($array, 0, $index),
+        [$element],
+        array_slice($array, $index)
     );
-  };
-  $arguments = func_get_args();
-  $curried = curryN($insert, 3);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($insert, 3);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -307,29 +307,29 @@ 
  */
 function join()
 {
-  $arguments = func_get_args();
-  $curried = curryN('implode', 2);
-  return call_user_func_array($curried, $arguments);
+    $arguments = func_get_args();
+    $curried = curryN('implode', 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 function last()
 {
-  $last = function (array $array) {
+    $last = function (array $array) {
     if (empty($array)) {
-      return null;
+        return null;
     }
     return $array[count($array) - 1];
-  };
-  $arguments = func_get_args();
-  $curried = curryN($last, 1);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($last, 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 function length()
 {
-  $arguments = func_get_args();
-  $curried = curryN('count', 1);
-  return call_user_func_array($curried, $arguments);
+    $arguments = func_get_args();
+    $curried = curryN('count', 1);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -339,9 +339,9 @@ 
  */
 function map()
 {
-  $arguments = func_get_args();
-  $curried = curryN('array_map', 2);
-  return call_user_func_array($curried, $arguments);
+    $arguments = func_get_args();
+    $curried = curryN('array_map', 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -351,12 +351,12 @@ 
  */
 function pair()
 {
-  $pair = function ($firstValue, $secondValue) {
+    $pair = function ($firstValue, $secondValue) {
     return [$firstValue, $secondValue];
-  };
-  $arguments = func_get_args();
-  $curried = curryN($pair, 2);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($pair, 2);
+    return call_user_func_array($curried, $arguments);
 }
 
 /**
@@ -367,12 +367,12 @@ 
  */
 function prepend()
 {
-  $prepend = function ($item, array $array) {
+    $prepend = function ($item, array $array) {
     return array_merge([$item], $array);
-  };
-  $arguments = func_get_args();
-  $curriedAny = curryN($prepend, 2);
-  return call_user_func_array($curriedAny, $arguments);
+    };
+    $arguments = func_get_args();
+    $curriedAny = curryN($prepend, 2);
+    return call_user_func_array($curriedAny, $arguments);
 }
 
 /**
@@ -383,23 +383,23 @@ 
  */
 function reduce()
 {
-  $reduce = function (callable $accumulator, $initialValue, array $array) {
+    $reduce = function (callable $accumulator, $initialValue, array $array) {
     return array_reduce($array, $accumulator, $initialValue);
-  };
-  $arguments = func_get_args();
-  $curried = curryN($reduce, 3);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($reduce, 3);
+    return call_user_func_array($curried, $arguments);
 }
 
 function tail()
 {
-  $tail = function (array $array) {
+    $tail = function (array $array) {
     if (empty($array)) {
-      return null;
+        return null;
     }
     return $array[count($array) - 1];
-  };
-  $arguments = func_get_args();
-  $curried = curryN($tail, 1);
-  return call_user_func_array($curried, $arguments);
+    };
+    $arguments = func_get_args();
+    $curried = curryN($tail, 1);
+    return call_user_func_array($curried, $arguments);
 }

Spacing +23 added lines, -23 removed lines

@@ -8,7 +8,7 @@ 
  */
 function all()
 {
-  $all = function (callable $predicateFunction, array $array): bool {
+  $all = function(callable $predicateFunction, array $array): bool {
     if (empty($array)) {
       return false;
     }
@@ -31,7 +31,7 @@ 
  */
 function any()
 {
-  $any = function (callable $predicateFunction, array $array) {
+  $any = function(callable $predicateFunction, array $array) {
     if (empty($array)) {
       return false;
     }
@@ -54,7 +54,7 @@ 
  */
 function arrayForEach()
 {
-  $arrayForEach = function (callable $fn, array $array) {
+  $arrayForEach = function(callable $fn, array $array) {
     foreach ($array as $item) {
       $fn($item);
     }
@@ -72,7 +72,7 @@ 
  */
 function append()
 {
-  $append = function ($item, array $array) {
+  $append = function($item, array $array) {
     return array_merge($array, [$item]);
   };
   $arguments = func_get_args();
@@ -88,7 +88,7 @@ 
  */
 function concat()
 {
-  $concat = function (array $firstArray, array $secondArray) {
+  $concat = function(array $firstArray, array $secondArray) {
     return array_merge($firstArray, $secondArray);
   };
   $arguments = func_get_args();
@@ -117,7 +117,7 @@ 
  */
 function drop()
 {
-  $drop = function (int $index, array $array) {
+  $drop = function(int $index, array $array) {
     return array_merge(array_slice($array, 0, $index), array_slice($array, $index + 1));
   };
   $arguments = func_get_args();
@@ -143,8 +143,8 @@ 
  */
 function dropLast()
 {
-  $dropLast = function (array $array) {
-    $index = count($array)-1;
+  $dropLast = function(array $array) {
+    $index = count($array) - 1;
     return array_merge(array_slice($array, 0, $index), array_slice($array, $index + 1));
   };
 
@@ -160,7 +160,7 @@ 
  */
 function endsWith()
 {
-  $endsWith = function ($suffix, $list) {
+  $endsWith = function($suffix, $list) {
     if (is_string($suffix) && is_string($list)) {
       return $suffix === '' || (($temp = strlen($list) - strlen($suffix)) >= 0 && strpos($list, $suffix) !== false);
     }
@@ -174,7 +174,7 @@ 
       }
       return true;
     }
-    throw new \InvalidArgumentException(__FUNCTION__ . 'accepts only string or array as it arguments');
+    throw new \InvalidArgumentException(__FUNCTION__.'accepts only string or array as it arguments');
   };
   $arguments = func_get_args();
   $curried = curryN($endsWith, 2);
@@ -188,7 +188,7 @@ 
  */
 function filter()
 {
-  $filter = function (callable $predicateFunction, array $array) {
+  $filter = function(callable $predicateFunction, array $array) {
      return array_values(array_filter($array, $predicateFunction));
   };
   $arguments = func_get_args();
@@ -203,7 +203,7 @@ 
  */
 function filterPreserveKey()
 {
-  $filter = function (callable $predicateFunction, array $array) {
+  $filter = function(callable $predicateFunction, array $array) {
     return array_filter($array, $predicateFunction);
   };
   $arguments = func_get_args();
@@ -218,7 +218,7 @@ 
  */
 function find()
 {
-  $find = function (callable $predicateFunction, array $list) {
+  $find = function(callable $predicateFunction, array $list) {
     foreach ($list as $item) {
       if ($predicateFunction($item)) {
         return $item;
@@ -233,7 +233,7 @@ 
 
 function first()
 {
-  $first = function (array $array) {
+  $first = function(array $array) {
     if (empty($array)) {
       return null;
     }
@@ -251,9 +251,9 @@ 
  */
 function groupBy()
 {
-  $groupBy = function (callable $keySelector, array $array) {
+  $groupBy = function(callable $keySelector, array $array) {
     return reduce(
-      function ($acc, $item) use ($keySelector) {
+      function($acc, $item) use ($keySelector) {
         $key = $keySelector($item);
         $acc[$key] = array_key_exists($key, $acc) ? array_merge($acc[$key], [$item]) : [$item];
         return $acc;
@@ -269,7 +269,7 @@ 
 
 function head()
 {
-  $head = function (array $array) {
+  $head = function(array $array) {
     if (empty($array)) {
       return null;
     }
@@ -288,7 +288,7 @@ 
  */
 function insert()
 {
-  $insert = function (int $index, $element, array $array) {
+  $insert = function(int $index, $element, array $array) {
     return array_merge(
       array_slice($array, 0, $index),
       [$element],
@@ -314,7 +314,7 @@ 
 
 function last()
 {
-  $last = function (array $array) {
+  $last = function(array $array) {
     if (empty($array)) {
       return null;
     }
@@ -351,7 +351,7 @@ 
  */
 function pair()
 {
-  $pair = function ($firstValue, $secondValue) {
+  $pair = function($firstValue, $secondValue) {
     return [$firstValue, $secondValue];
   };
   $arguments = func_get_args();
@@ -367,7 +367,7 @@ 
  */
 function prepend()
 {
-  $prepend = function ($item, array $array) {
+  $prepend = function($item, array $array) {
     return array_merge([$item], $array);
   };
   $arguments = func_get_args();
@@ -383,7 +383,7 @@ 
  */
 function reduce()
 {
-  $reduce = function (callable $accumulator, $initialValue, array $array) {
+  $reduce = function(callable $accumulator, $initialValue, array $array) {
     return array_reduce($array, $accumulator, $initialValue);
   };
   $arguments = func_get_args();
@@ -393,7 +393,7 @@ 
 
 function tail()
 {
-  $tail = function (array $array) {
+  $tail = function(array $array) {
     if (empty($array)) {
       return null;
     }