PHP Revinate\Sequence IterationTraits::mapKeys示例

示例#1

文件： Sequence.php 项目： pbu88/sequence

 /**
  * @param callable $fnMap($value, $key) -- function that returns the new key
  * @return static
  */
 public function keyBy($fnMap)
 {
     return static::make(IterationTraits::mapKeys($this, FnGen::fnSwapParamsPassThrough($fnMap)));
 }