Method delete

packages/svelte/src/reactivity/map.js:196–212

@param {K} key

(key)

	/** @param {K} key */
	delete(key) {
		var sources = this.#sources;
		var s = sources.get(key);
		var res = super.delete(key);

		if (s !== undefined) {
			sources.delete(key);
			set(s, -1);
		}

		if (res) {
			set(this.#size, super.size);
			increment(this.#version);
		}

		return res;
	}

	clear() {
		if (super.size === 0) {