element-plus/website/docs/en-US/date-picker.md
Xing.Wu 5a276e48bc
doc(): DatePicker code for composition (#2162)
Co-authored-by: 无星 <32910694@qq.com>
2021-06-08 13:11:15 +08:00

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DatePicker

Use Date Picker for date input.

Enter Date

Basic date picker measured by 'day'.

:::demo The measurement is determined by the type attribute. You can enable quick options via shortcuts property. The disabled date is set by disabledDate, which is a function.

<template>
  <div class="block">
    <span class="demonstration">Default</span>
    <el-date-picker
      v-model="value1"
      type="date"
      placeholder="Pick a day">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">Picker with quick options</span>
    <el-date-picker
      v-model="value2"
      type="date"
      placeholder="Pick a day"
      :disabled-date="disabledDate"
      :shortcuts="shortcuts"
    >
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        disabledDate(time) {
          return time.getTime() > Date.now()
        },
        shortcuts: [{
          text: 'Today',
          value: new Date(),
        }, {
          text: 'Yesterday',
          value: (() => {
            const date = new Date()
            date.setTime(date.getTime() - 3600 * 1000 * 24)
            return date
          })(),
        }, {
          text: 'A week ago',
          value: (() => {
            const date = new Date()
            date.setTime(date.getTime() - 3600 * 1000 * 24 * 7)
            return date
          })(),
        }],
        value1: '',
        value2: '',
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, reactive, toRefs } from 'vue';

  export default defineComponent({
    setup() {
      const state = reactive({
        disabledDate(time) {
          return time.getTime() > Date.now();
        },
        shortcuts: [
          {
            text: 'Today',
            value: new Date(),
          },
          {
            text: 'Yesterday',
            value: (() => {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24);
              return date;
            })(),
          },
          {
            text: 'A week ago',
            value: (() => {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24 * 7);
              return date;
            })(),
          },
        ],
        value1: '',
        value2: '',
      });

      return {
        ...toRefs(state),
      };
    },
  });

</setup>
-->

:::

Other measurements

You can choose week, month, year or multiple dates by extending the standard date picker component.

:::demo

<div class="container">
  <div class="block">
    <span class="demonstration">Week</span>
    <el-date-picker
      v-model="value1"
      type="week"
      format="[Week] ww"
      placeholder="Pick a week">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">Month</span>
    <el-date-picker
      v-model="value2"
      type="month"
      placeholder="Pick a month">
    </el-date-picker>
  </div>
</div>
<div class="container">
  <div class="block">
    <span class="demonstration">Year</span>
    <el-date-picker
      v-model="value3"
      type="year"
      placeholder="Pick a year">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">Dates</span>
    <el-date-picker
      type="dates"
      v-model="value4"
      placeholder="Pick one or more dates">
    </el-date-picker>
  </div>
</div>

<script>
  export default {
    data() {
      return {
        value1: '',
        value2: '',
        value3: '',
        value4: ''
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, reactive, toRefs } from 'vue';

  export default defineComponent({
    setup() {
      const state = reactive({
        value1: '',
        value2: '',
        value3: '',
        value4: '',
      });

      return {
        ...toRefs(state),
      };
    },
  });

</setup>
-->

:::

Date Range

Picking a date range is supported.

:::demo When in range mode, the left and right panels are linked by default. If you want the two panels to switch current months independently, you can use the unlink-panels attribute.

<template>
  <div class="block">
    <span class="demonstration">Default</span>
    <el-date-picker
      v-model="value1"
      type="daterange"
      range-separator="To"
      start-placeholder="Start date"
      end-placeholder="End date">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">With quick options</span>
    <el-date-picker
      v-model="value2"
      type="daterange"
      align="right"
      unlink-panels
      range-separator="To"
      start-placeholder="Start date"
      end-placeholder="End date"
      :shortcuts="shortcuts"
    >
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        shortcuts: [{
          text: 'Last week',
          value: (() => {
            const end = new Date()
            const start = new Date()
            start.setTime(start.getTime() - 3600 * 1000 * 24 * 7)
            return [start, end]
          })(),
        }, {
          text: 'Last month',
          value: (() => {
            const end = new Date()
            const start = new Date()
            start.setTime(start.getTime() - 3600 * 1000 * 24 * 30)
            return [start, end]
          })(),
        }, {
          text: 'Last 3 months',
          value: (() => {
            const end = new Date()
            const start = new Date()
            start.setTime(start.getTime() - 3600 * 1000 * 24 * 90)
            return [start, end]
          })(),
        }],
        value1: '',
        value2: ''
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, reactive, toRefs } from 'vue';

  export default defineComponent({
    setup() {
      const state = reactive({
        shortcuts: [
          {
            text: 'Last week',
            value: (() => {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 7);
              return [start, end];
            })(),
          },
          {
            text: 'Last month',
            value: (() => {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 30);
              return [start, end];
            })(),
          },
          {
            text: 'Last 3 months',
            value: (() => {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 90);
              return [start, end];
            })(),
          },
        ],
        value1: '',
        value2: '',
      });

      return {
        ...toRefs(state),
      };
    },
  });

</setup>
-->

:::

Month Range

Picking a month range is supported.

:::demo When in range mode, the left and right panels are linked by default. If you want the two panels to switch current years independently, you can use the unlink-panels attribute.

<template>
  <div class="block">
    <span class="demonstration">Default</span>
    <el-date-picker
      v-model="value1"
      type="monthrange"
      range-separator="To"
      start-placeholder="Start month"
      end-placeholder="End month">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">With quick options</span>
    <el-date-picker
      v-model="value2"
      type="monthrange"
      align="right"
      unlink-panels
      range-separator="To"
      start-placeholder="Start month"
      end-placeholder="End month"
      :shortcuts="shortcuts"
    >
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        shortcuts: [{
          text: 'This month',
          value: [new Date(), new Date()],
        }, {
          text: 'This year',
          value: (() => {
            const end = new Date()
            const start = new Date(new Date().getFullYear(), 0)
            return [start, end]
          })(),
        }, {
          text: 'Last 6 months',
          value: (() => {
            const end = new Date()
            const start = new Date()
            start.setMonth(start.getMonth() - 6)
            return [start, end]
          })(),
        }],
        value1: '',
        value2: ''
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, reactive, toRefs } from 'vue';

  export default defineComponent({
    setup() {
      const state = reactive({
        shortcuts: [
          {
            text: 'This month',
            value: [new Date(), new Date()],
          },
          {
            text: 'This year',
            value: (() => {
              const end = new Date();
              const start = new Date(new Date().getFullYear(), 0);
              return [start, end];
            })(),
          },
          {
            text: 'Last 6 months',
            value: (() => {
              const end = new Date();
              const start = new Date();
              start.setMonth(start.getMonth() - 6);
              return [start, end];
            })(),
          },
        ],
        value1: '',
        value2: '',
      });

      return {
        ...toRefs(state),
      };
    },
  });

</setup>
-->

:::

Default Value

If user hasn't picked a date, shows today's calendar by default. You can use default-value to set another date. Its value should be parsable by new Date().

If type is daterange, default-value sets the left side calendar.

:::demo

<template>
  <div class="block">
    <span class="demonstration">date</span>
    <el-date-picker
      v-model="value1"
      type="date"
      placeholder="Pick a date"
      :default-value="new Date(2010, 9, 1)">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">daterange</span>
    <el-date-picker
      v-model="value2"
      type="daterange"
      align="right"
      start-placeholder="Start Date"
      end-placeholder="End Date"
      :default-value="[new Date(2010, 9, 1), new Date(2010, 10, 1)]">
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        value1: '',
        value2: ''
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, ref } from 'vue';

  export default defineComponent({
    setup() {
      const value1 = ref('');
      const value2 = ref('');

      return {
        value1,
        value2,
      };
    },
  });

</setup>
-->

:::

Date Formats

Use format to control displayed text's format in the input box.

By default, the component accepts and emits a Date object.

Check the list here of all available formats of Day.js.

:::warning Pay attention to capitalization :::

:::demo

<template>
  <div class="block">
    <span class="demonstration">Emits Date object</span>
    <div class="demonstration">Value: {{ value1 }}</div>
    <el-date-picker
      v-model="value1"
      type="date"
      placeholder="Pick a Date"
      format="YYYY/MM/DD">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">Use value-format</span>
    <div class="demonstration">Value{{ value2 }}</div>
    <el-date-picker
      v-model="value2"
      type="date"
      placeholder="Pick a Date"
      format="YYYY/MM/DD"
      value-format="YYYY-MM-DD">
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        value1: '',
        value2: ''
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, ref } from 'vue';

  export default defineComponent({
    setup() {
      const value1 = ref('');
      const value2 = ref('');

      return {
        value1,
        value2,
      };
    },
  });

</setup>
-->

:::

Default time for start date and end date

When picking a date range, you can assign the time part for start date and end date.

:::demo By default, the time part of start date and end date are both 00:00:00. Setting default-time can change their time respectively. It accepts an array of up to two Date objects. The first string sets the time for the start date, and the second for the end date.

<template>
  <div class="block">
    <p>Component value{{ value }}</p>
    <el-date-picker
      v-model="value"
      type="daterange"
      start-placeholder="Start date"
      end-placeholder="End date"
      :default-time="defaultTime"
    ></el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        value: '',
        defaultTime: [
          new Date(2000, 1, 1, 0, 0, 0),
          new Date(2000, 2, 1, 23, 59, 59)
        ] // '00:00:00', '23:59:59'
      };
    }
  };
</script>
<!--
<setup>

  import { defineComponent, ref } from 'vue';

  export default defineComponent({
    setup() {
      const value = ref('');
      const defaultTime = ref([
        new Date(2000, 1, 1, 0, 0, 0),
        new Date(2000, 2, 1, 23, 59, 59),
      ]); // '00:00:00', '23:59:59'

      return {
        value,
        defaultTime,
      };
    },
  });

</setup>
-->

:::

Localization

The default locale of is English, if you need to use other languages, please check Internationalization

Note, date time locale (month name, first day of the week ...) are also configed in localization.

Attributes

Attribute Description Type Accepted Values Default
model-value / v-model binding value date(DatePicker) / array(DateRangePicker)
readonly whether DatePicker is read only boolean false
disabled whether DatePicker is disabled boolean false
size size of Input string large/medium/small/mini large
editable whether the input is editable boolean true
clearable whether to show clear button boolean true
placeholder placeholder in non-range mode string
start-placeholder placeholder for the start date in range mode string
end-placeholder placeholder for the end date in range mode string
type type of the picker string year/month/date/dates/datetime/ week/datetimerange/daterange/ monthrange date
format format of the displayed value in the input box string see date formats YYYY-MM-DD
align alignment left/center/right left
popper-class custom class name for DatePicker's dropdown string
range-separator range separator string '-'
default-value optional, default date of the calendar Date anything accepted by new Date()
default-time optional, the time value to use when selecting date range Date[] Array with length 2, each item is a Date. The first item for the start date and then second item for the end date
value-format optional, format of binding value. If not specified, the binding value will be a Date object string see date formats
name same as name in native input string
unlink-panels unlink two date-panels in range-picker boolean false
prefix-icon Custom prefix icon class string el-icon-date
clear-icon Custom clear icon class string el-icon-circle-close
validate-event whether to trigger form validation boolean - true
disabledDate a function determining if a date is disabled with that date as its parameter. Should return a Boolean function
shortcuts an object array to set shortcut options object[{ text: string, value: Date }]

Events

Event Name Description Parameters
change triggers when user confirms the value component's binding value
blur triggers when Input blurs component instance
focus triggers when Input focuses component instance

Methods

Method Description Parameters
focus focus the Input component

Slots

Name Description
range-separator custom range separator content