Summary of the prop role of element's el-form-item

This is relatively simple to introduce in elemenui. Generally, when writing according to examples, it will run normally. I didn't pay much attention to what impact Porp has. I have some time to sort it out this time.

Summarize:

The prop attribute in Vue form validation is used to specify the form fields that need to be validated.

1. The prop attribute defines the field name.
2. It is associated with the verification rules.
3. Ensure the integrity and accuracy of the data. For example, when using the Element UI library, the prop attribute is in el-form-item

1.prop attribute plays the role of defining field names in Vue form verification.

It allows the verification rules to know which field data to be verified by specifying the field name in the el-form-item component.

For example:

<el-form :model="form" :rules="rules">
  <el-form-item label="username" prop="username">
    <el-input v-model=""></el-input>
  </el-form-item>
</el-form>

In the above code, prop="username" defines the field name corresponding to the el-form-item component as username.

2. It is related to the verification rules

The prop attribute is not just a definition of the field name, it is also directly associated with the verification rules. When defining a validation rule, make sure that the key name of the rule is consistent with the prop attribute value, so that the validation rule is applied to the correct field.

For example:

data() {
  return {
    form: {
      username: '',
    },
    rules: {
      username: [
        { required: true, message: 'Please enter the username', trigger: 'blur' },
        { min: 3, max: 15, message: 'Username length is 3 to 15 characters', trigger: 'blur' }
      ]
    }
  };
}

In this example, the key name username of the rules object matches the prop attribute value username in el-form-item, ensuring that the validation rule is applied to the username field.

3. Ensure the integrity and accuracy of the data

By using prop properties combined with verification rules, the integrity and accuracy of form data can be ensured. This not only prevents users from submitting invalid or incomplete data, but also provides instant user feedback to improve the user experience.

Cause analysis:

• Prevent invalid data submissions: Verification rules prevent users from submitting data that does not meet the requirements.
• Instant feedback: When users fill out the form, they get error prompts immediately and can be corrected quickly.
• Improve data quality: Ensure that the submitted data meets the expected format and requirements, and improves the quality and reliability of the data.

IV. Example description

Here is a complete example of how to use the prop properties for form validation by using the Element UI library.

<el-form-item label="username" prop="username">
  <el-input v-model=""></el-input>
</el-form-item>
<el-form-item label="Mail" prop="email">
  <el-input v-model=""></el-input>
</el-form-item>
<el-form-item>
  <el-button type="primary" @click="submitForm('form')">submit</el-button>
</el-form-item>

In this example, the form contains two fields: username and email. Each field specifies the corresponding field name through the prop attribute, and the corresponding verification rules are defined in the rules object.

This is the end of this article about the el-form-item prop function of element. For more related el-form-item prop content, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!