Config Provider 全局配置 ​

<template>
  <div>
    <el-button mb-2 @click="toggle">Switch Language</el-button>
    <br />

    <el-config-provider :locale="locale">
      <el-table mb-1 :data="[]" />
      <el-pagination :total="100" />
    </el-config-provider>
  </div>
</template>

<script lang="ts" setup>
import { computed, ref } from 'vue'
import zhCn from 'element-plus/dist/locale/zh-cn.mjs'
import en from 'element-plus/dist/locale/en.mjs'

const language = ref('zh-cn')
const locale = computed(() => (language.value === 'zh-cn' ? zhCn : en))

const toggle = () => {
  language.value = language.value === 'zh-cn' ? 'en' : 'zh-cn'
}
</script>

<template>
  <div>
    <div m="b-2">
      <el-checkbox v-model="config.autoInsertSpace">
        autoInsertSpace
      </el-checkbox>
    </div>

    <el-config-provider :button="config">
      <el-button>中文</el-button>
    </el-config-provider>
  </div>
</template>

<script lang="ts" setup>
import { reactive } from 'vue'

const config = reactive({
  autoInsertSpace: true,
})
</script>

<template>
  <div>
    <el-config-provider :message="config">
      <el-button @click="open">OPEN</el-button>
    </el-config-provider>
  </div>
</template>

<script lang="ts" setup>
import { reactive } from 'vue'
import { ElMessage } from 'element-plus'
const config = reactive({
  max: 3,
})
const open = () => {
  ElMessage('This is a message.')
}
</script>

<template>
  <el-config-provider :value-on-clear="null" :empty-values="[undefined, null]">
    <div class="flex flex-wrap gap-4 items-center">
      <el-select
        v-model="value1"
        clearable
        placeholder="Select"
        style="width: 240px"
        @change="handleChange"
      >
        <el-option
          v-for="item in options"
          :key="item.value"
          :label="item.label"
          :value="item.value"
        />
      </el-select>
      <el-select-v2
        v-model="value2"
        clearable
        placeholder="Select"
        style="width: 240px"
        :options="options"
        :value-on-clear="() => undefined"
        @change="handleChange"
      />
    </div>
  </el-config-provider>
</template>

<script lang="ts" setup>
import { ref } from 'vue'
import { ElMessage } from 'element-plus'

const value1 = ref('')
const value2 = ref('')
const options = [
  {
    value: '',
    label: 'All',
  },
  {
    value: 'Option1',
    label: 'Option1',
  },
  {
    value: 'Option2',
    label: 'Option2',
  },
  {
    value: 'Option3',
    label: 'Option3',
  },
  {
    value: 'Option4',
    label: 'Option4',
  },
  {
    value: 'Option5',
    label: 'Option5',
  },
]

const handleChange = (value) => {
  if ([undefined, null].includes(value)) {
    ElMessage.info(`The clear value is: ${value}`)
  }
}
</script>