"Exploring the process of assigning input data to a different variable within a Vue component

Reviewing the code snippet I currently have:

<template>
    <div>
        <input v-model.number="money">
        <p>{{ money }}</p>
    </div>
</template>

<script>
name: 'MyComponent',
  data () {
    return {
        money: 0
    }
  }
</script>

Upon modifying the value of money in the data section after retrieving the input value, how can I retrieve the original input value? Is this approach recommended or should I store the input value in a separate variable?

Answer №1

Whether or not you choose to keep the original value or calculate a new one really depends on your specific needs and goals. As mentioned by another contributor, you have the option to maintain the initial value while also generating a computed value based on user input. Here's an example of how you can achieve that:

  data: {
    amount: 0
  },
  computed: {
    calculatedAmount() {
      return this.amount + this.amount * 0.05;
    }
  }

To see this concept in action, check out this live demonstration: https://example.com/sample-demo

Answer №2

Since this response might exceed the character limit for a comment, I will provide my answer here after carefully considering your objective.

data: {
  numListItems: 0,
  values: [5,6,7],
},
computed: {
  generatedList() {
    return this.values.slice(this.numListItems);
  }
}

You can then access the output as this.generatedList or use

<li v-for="item in generatedList" :key="item">{{ item }}</li>
within the template.

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