[Vuejs]-How to get default value from component vue.js?

by

3👍

✅

One of the easiest ways would be to emit the default value when the mounted function fires.

mounted () {
    this.$emit('selected', config.state.fromDate)
}

Other than that I would mutate the value into a prop and alter it slightly to allow it to work with v-model so that the default value is passed from the parent using whichever method it chooses to derive that value.

EDIT:

Here’s how I would refactor it to use a prop.

<template>
  <div>
    <label class="col-form-label">
      <span>From</span>
    </label>
    <DatepickerFrom v-on:selected="SetSelectedDateFrom" :value="value" :disabled="config.disabledFrom"></DatepickerFrom>
  </div>
</template>

<script>
import DatepickerFrom from 'vuejs-datepicker'
const dUse = new Date()
export default {
  props: {
    value: {
      type: String,
      required: true
    }
  },
  data() {
    return {
      config: {
        disabledFrom: {
          to: new Date(dUse.getFullYear() - 1, dUse.getMonth(), dUse.getDate()),
          from: new Date(dUse.getFullYear(), dUse.getMonth(), dUse.getDate())
        },
        state: {
        }
      }
    }
  },

  methods: {
    SetSelectedDateFrom: function(selectedDate) {
      this.$emit('input', selectedDate)
    }
  },
  components: {
    DatepickerFrom
  }
}
</script>

now you can use your component with the v-model directive for 2 way binding

<component v-model="dateFrom"></component>

...

data () {
  return {
    dateFrom: new Date(
      dUse.getFullYear(),
      dUse.getMonth(),
      dUse.getDate() - 1
    ).toString()
  }
}
👤Justin MacArthur

Leave a comment