はてなブックマーク

this.selected.includes(id)); }, toggleArea(areaValue, checked) { const ids = this.areas[areaValue]; if (checked) { this.selected = [...new Set([...this.selected, ...ids])]; } else { this.selected = this.selected.filter(id => !ids.includes(id)); } }, get displayText() { return this.selected.length === 0 ? '全国' : this.selected.map(id => this.labels[id]).join('、'); } }">