最小/最大验证-验证

Question

我需要确保只能输入介于5,000和50,000之间的数字。我目前使用的是以下代码，

rules: {
     required: value => !!value || 'Required.',
     loanMin: value => value <= 5000 || 'Loan should be above £5000',
     loanMax: value => value >= 50000 || 'Max should not be above £50,000',
}

将规则应用于字段，如下所示：

<v-text-field 
  height="5" 
  :rules="[rules.loanMin, rules.loanMaxMax, rules.required]" 
  editable 
  v-model="sliderLoan" 
  @change="principleLogger(sliderLoan)" 
  persistent-hint 
  outline 
  label="Loan Amount" 
  type="number"
></v-text-field>

如何将多个规则应用于一个字段？

Answer 1

模板中的

<v-text-field
    label="Example" 
    v-model="example" 
    :rules="exampleRules"
></v-text-field>

data中的

example: "",
exampleRules: [ 
    v => !!v || "This field is required",
    v => ( v && v >= 5000 ) || "Loan should be above £5000",
    v => ( v && v <= 50000 ) || "Max should not be above £50,000",
],

参考： https://vuetifyjs.com/en/components/forms/，查看playground下的示例代码。

奖励：不是这个问题的一部分，但与此相关，稍作更改后，您可以使用相同的最小/最大长度验证。

example: "",
exampleRules: [ 
    v => !!v || "This field is required", 
    v => ( v && v.length >= 10 ) || "This field must have atleast 10 characters",
    v => ( v && v.length <= 100 ) || "This field exceeds maximum allowed characters",
],

Answer 2

Vue：

<v-text-field 
    height="5" 
    :rules="rules" 
    editable 
    v-model="sliderLoan" 
    @change="principleLogger(sliderLoan)" 
    persistent-hint 
    outline 
    label="Loan Amount" 
    type="number"
/>

脚本：

rules: [
         v => !!v || 'Required',
         v => v >= 5000 || 'Loan should be above £5000',
         v => v <= 50000 || 'Max should not be above £50,000',
    ],

Answer 3

我找到了另一个解决方案。

​

<v-text-field
    v-model="myNumber"
    :min="minValue"
    :max="maxValue"
    hide-details
    single-line
    type="number"
/>

​

在数据中定义minValue和maxValue的位置。