message: feat(Checkbox): improve toggleAll perf
diff: @@ -24,10 +24,20 @@ export default createComponent({
  },
  methods: {
  + // @exposed-api
  toggleAll(checked) {
  - this.children.forEach(item => {
  - item.toggle(checked);
  - });
  + if (checked === false) {
  + this.$emit('input', []);
  + return;
  + }
  +
  + let { children } = this;
  + if (!checked) {
  + children = children.filter(item => !item.checked);
  + }
  +
  + const names = children.map(item => item.name);
  + this.$emit('input', names);
  }
  },
  