移除元素

标准移除

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = Rect.one({ fill: '#32cd79' }, 100, 100, 200, 200)

leafer.add(rect)

setTimeout(() => {

    rect.remove() // 等同于 leafer.remove(rect)

}, 2000)

条件移除

同 find() 方法的参数一致，内部会先 find() 再批量移除。

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = Rect.one({ id: 'book', fill: '#32cd79' }, 100, 100, 200, 200)
const rect2 = Rect.one({ fill: 'blue' }, 300, 100, 200, 200)

leafer.addMany(rect, rect2)

setTimeout(() => {

    // 移除 id 为 book 的元素
    leafer.remove('#book') // 等同于 leafer.find('#book').forEach(item => item.remove())

}, 2000)

销毁移除

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = Rect.one({ fill: '#32cd79' }, 100, 100, 200, 200)

leafer.add(rect)

setTimeout(() => {

    rect.destroy() // 等同于 rect.remove() => rect.destroy()

}, 2000)

清空元素

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = Rect.one({ fill: '#32cd79' }, 100, 100, 200, 200)
const rect2 = Rect.one({ fill: 'blue' }, 300, 100, 200, 200)

leafer.addMany(rect, rect2)

setTimeout(() => {

    leafer.clear() // 清空并销毁所有子元素

}, 2000)

销毁应用

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = Rect.one({ fill: '#32cd79' }, 100, 100, 200, 200)

leafer.add(rect)

setTimeout(() => {

    leafer.destroy() // 应用销毁默认为异步方式

}, 2000)

恭喜 🎉

你已完成基础知识的学习，接下来将学习几个重要的进阶知识。

下一步

App 结构