How to convert string to integer in vue

With the continuous development and iteration of front-end technology, the Vue framework has become one of the front-end frameworks that developers like to choose. The main features of the Vue framework are lightweight, easy to learn, easy to integrate, and has responsive data binding and componentized development model. But in the specific development process, we still need to solve some practical problems, such as converting strings into integers.

In Vue, there are many ways to convert strings into integers, such as using the parseInt() method provided by JavaScript, the filter filter provided by the Vue framework, etc. Let's introduce them one by one below.

Method 1: Use the parseInt() method provided by JavaScript

The parseInt() method is one of the methods commonly used in JavaScript to convert strings into integers. It can convert strings into integer. The following is a code example that uses the parseInt() method to convert a string into an integer:

//使用parseInt()方法将字符串转化为整数
let str = '123'
let num = parseInt(str)
console.log(num) // 123

This is the simplest method to convert a string into an integer, but it should be noted that the parseInt() method can only Convert the part of the string that represents an integer into an integer. If the string contains other characters, such as letters, symbols, etc., it cannot be correctly converted into an integer.

Method 2: Use the filter provided by the Vue framework

The Vue framework provides the filter function, which can format the data to a certain extent. In the Vue framework, we can use the filter filter to convert strings into integers. The following is a code example that uses the filter filter provided by the Vue framework to convert a string into an integer:

<template>
  <div>
    <!-- 使用filter过滤器将字符串转化为整数 -->
    <p>{{ str | toNum }}</p>
  </div>
</template>
<script>
export default {
  data() {
    return {
      str: '123'
    }
  },
  filters: {
    toNum(str) {
      return parseInt(str)
    }
  }
}
</script>

In the above code, we use the filter filter provided by the Vue framework to convert a string into an integer. In the template, we use pipe | to bind the data to the filter for processing. As you can see, the name of the filter is toNum, which is actually done by converting the string into an integer. realized.

Summary

In actual development, converting strings into integers is a common problem that must be solved. In the Vue framework, we can use the parseInt() method provided by JavaScript or The filter filter provided by the Vue framework is implemented. No matter which method is used, we need to pay attention to the characters contained in the string to ensure the accuracy and reliability of the conversion into integers. I hope this article can help everyone, thank you for watching!

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