Method _update

packages/svelte/tests/animation-helpers.js:81–92

()

	}

	_update() {
		this.currentTime = raf.time - this.#offset - this.#delay;
		if (this.currentTime < 0) return;

		const target_frame = this.currentTime / this.#duration;
		this.#apply_keyframe(target_frame);

		if (this.currentTime >= this.#duration) {
			this.#onfinish();
			raf.animations.delete(this);
		}
	}

	/**
	 * @param {number} t