public function removeParam(string $name): self
    {
        if (array_key_exists($name, $this->parameters)) {
            unset($this->parameters[$name]);
        }

        return $this;
    }
public function removeParam(string $name): self
    {
        if (array_key_exists($name, $this->parameters)) {
            unset($this->parameters[$name]);
        }

        return $this;
    }
public function removeParam ( string $ name ) : self { if ( array_key_exists ( $ name , $ this -> parameters ) ) { unset ( $ this -> parameters [ $ name ] ) ; } return $ this ; }
remove a param

@param   string  $name  name of parameter
@return  \stubbles\peer\QueryString
remove a param