CODEWITHSUNDEEP
javascriptvue.jschart.jsvue-component
Anders Bootsmann Larsen
Anders Bootsmann Larsen

Reputation: 341

Vue JS setting data collection in component

I want to make my code shorter. I have chart js which is using datacollection to set options for the chart. I want to render it in another component at use it on my pages.

I want to be able to set det data collection from the component render, based on which chart I want.

I have something like this in my component:

<template>
   <div>
     <chart :datacollection="this_will_i_define_on_the_page_i_render_this_component"> </chart>
   </div>
<template>

<script> 
  export {
    name: 'this-chart',
    data () { 
      return {
       DC1: []
       DC2: []
      }
    }
 }
 (basic vue component)
</script>


<template>
  <this-chart :datacollection="DC1"> </this-chart>
  <this-chart :datacollection="DC2"> </this-chart>
</template>

So I want to be able to go down in my component and set the datacollection. How can I do that?

Thanks in advance.

Upvotes: 0

Views: 372

Answers (2)

Danie A
Danie A

Reputation: 821

I think you're looking for component props.

<template>
    <div>
        <chart :data-collection="myChartData"></chart>
    </div>
</template>

<script>
export default {
  name: "this-chart",
  props: {
    myChartData: {
      type: Array,
      required: true
    }
  }
};
</script>

And to use it

<template>
    <this-chart :my-chart-data="exampleData"></this-chart>
</template>

<script>
export default {
  name: "example-component",
  data() {
    return {
      exampleData: [{ x: 5, y: 10 }, { x: 6, y: 11 }]
    };
  }
};
</script>

Please format your code better next time.

Upvotes: 1

Danie A
Danie A

Reputation: 821

Then based on your comment you could to something like this. Probably more elegant way but should work.

<template>
    <div>
        <chart :data-collection="myChartData"></chart>
    </div>
</template>

<script>
export default {
  name: "this-chart",
  props: {
    activeDataSet: {
      type: String,
      required: true,
      validator: value => ["a", "b", "c"].indexOf(value) > -1
    }
  },
  computed: {
    myChartData() {
      const example1 = [{ x: 1, y: 2 }, { x: 2, y: 3 },{ x: 3 y: 4 }];
      const example2 = [{ x: 1, y: 2 }, { x: 2, y: 3 },{ x: 3 y: 4 }];
      const example3 = [{ x: 1, y: 2 }, { x: 2, y: 3 },{ x: 3 y: 4 }];
      if(this.activeDataSet === 'a') return example1
      if(this.activeDataSet === 'b') return example2
      if(this.activeDataSet === 'c') return example3
    }
  }
};
</script>

and then to use

<template>
    <this-chart activeDataSet="a"></this-chart>
</template>

Upvotes: 1

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