WP_Dependencies::add( string $handle, string|false $src, string[] $deps = array(), string|bool|null $ver = false, mixed $args = null ): bool

281	public function add( $handle, $src, $deps = array(), $ver = false, $args = null ) {282		if ( isset( $this->registered[ $handle ] ) ) {283			return false;284		}285		$this->registered[ $handle ] = new _WP_Dependency( $handle, $src, $deps, $ver, $args );286 287		// If the item was enqueued before the details were registered, enqueue it now.288		if ( array_key_exists( $handle, $this->queued_before_register ) ) {289			if ( ! is_null( $this->queued_before_register[ $handle ] ) ) {290				$this->enqueue( $handle . '?' . $this->queued_before_register[ $handle ] );291			} else {292				$this->enqueue( $handle );293			}294 295			unset( $this->queued_before_register[ $handle ] );296		}297 298		return true;299	}