Explore several ways to get the maximum value in Vue

Vue is a framework based on MVVM (Model-View-Controller), which can effectively realize front-end data rendering and interaction. During the development process of Vue, it is often necessary to perform the maximum value operation on a set of numbers. So how to get the maximum value of several numbers in Vue? This article will explore several methods of maximizing Vue.

1. Using JavaScript’s Math.max() function

JavaScript provides the Math.max() function, which can obtain the maximum value of a set of numbers. We can use this function in Vue to operate. The specific implementation is as follows:

<template>
  <div>
    <p>数组[5,8,13,2,1]的最大值为：{{ max }}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      arr: [5, 8, 13, 2, 1]
    };
  },
  computed: {
    max() {
      return Math.max.apply(null,this.arr);
    }
  }
};
</script>

In the above code, we first define an array arr, then use the computed calculation attribute and call the Math.max() function to find the maximum value of the array And assign the result to max, and finally display the value of max in the template. The running result is:

数组[5,8,13,2,1]的最大值为：13

2. Use the expansion operator of es6

In addition to using the Math.max() function, we can also use the expansion operator (... operation in ES6 symbol) and the reduce() function of an array to get the maximum value of a set of numbers. The specific implementation is as follows:

<template>
  <div>
    <p>数组[5,8,13,2,1]的最大值为：{{ max }}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      arr: [5, 8, 13, 2, 1]
    };
  },
  computed: {
    max() {
      return this.arr.reduce((prev,curr) => prev > curr ? prev : curr);
    }
  }
};
</script>

In the above code, we also first define an array arr, and then use the computed calculation attribute to call the reduce() function of the array to find out the Maximum value and assign the result to max, and finally display the value of max in the template. The running result is also:

数组[5,8,13,2,1]的最大值为：13

3. Use of vue-lodash

In addition, we can also use vue-lodash, a plug-in of Vue, to obtain the maximum value of a set of numbers. To use vue-lodash, you need to install and introduce the lodash library first. The specific implementation is as follows:

<template>
  <div>
    <p>数组[5,8,13,2,1]的最大值为：{{ max }}</p>
  </div>
</template>

<script>
import Vue from 'vue'
import VueLodash from 'vue-lodash'
import _ from 'lodash'

Vue.use(VueLodash, { name: 'lodash' })

export default {
  data() {
    return {
      arr: [5, 8, 13, 2, 1]
    };
  },
  computed: {
    max() {
      return this._.max(this.arr);
    },
    _() {
      return _;
    }
  }
};
</script>

In the above code, we first introduce vue-lodash into Vue, and call the _.max() function in computed to find the maximum value of the array. It should be noted that here we need to define a calculated attribute _ and give it a reference to the lodash library, so that we can call the lodash function through this._ in computed. The running result is also:

数组[5,8,13,2,1]的最大值为：13

The above three methods can be used to obtain the maximum value of a set of numbers. Different methods are suitable for different scenarios and need to be selected according to the actual situation. During the development process of Vue, the corresponding implementation method must be flexibly selected according to the actual needs of the project.

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