Method addOption

src/dropdown.ts:185–191

(value: string, label: string)

	}

	addOption(value: string, label: string) {
		this.options.set(value, label);
		if (this.dropdownEl) {
			this.renderDropdown();
		}
		this.updateLabel();
	}

	setValues(values: string[]) {
		this.selectedValues = new Set(values);