vue-formulate

Pros of FormKit

• More comprehensive documentation and examples
• Active development with frequent updates and bug fixes
• Built-in support for advanced features like repeatable fields and conditional logic

Cons of FormKit

• Steeper learning curve due to more complex API
• Larger bundle size, which may impact performance in smaller projects
• Some users report occasional issues with TypeScript support

Code Comparison

Vue Formulate:

<FormulateForm>
  <FormulateInput
    type="text"
    name="username"
    label="Username"
    validation="required"
  />
</FormulateForm>

FormKit:

<FormKit
  type="form"
  :actions="false"
  @submit="handleSubmit"
>
  <FormKit
    type="text"
    name="username"
    label="Username"
    validation="required"
  />
</FormKit>

Both libraries offer similar syntax for basic form creation, but FormKit provides more flexibility and options for complex scenarios. Vue Formulate has a simpler API, which can be advantageous for smaller projects or developers new to form libraries. FormKit's additional features and active development make it a strong choice for larger, more complex applications, despite the potential drawbacks of increased complexity and bundle size.

Pros of Vuelidate

• Lightweight and flexible, with a smaller bundle size
• Supports model-based validation, allowing for more complex validation scenarios
• Offers easy integration with existing Vue projects

Cons of Vuelidate

• Requires more manual setup and configuration
• Less intuitive for beginners due to its flexibility and lower-level API
• Lacks built-in form generation capabilities

Code Comparison

Vue-formulate:

<FormulateForm>
  <FormulateInput
    type="text"
    name="username"
    label="Username"
    validation="required|min:3"
  />
</FormulateForm>

Vuelidate:

<template>
  <input v-model="$v.username.$model" />
</template>

<script>
import { required, minLength } from 'vuelidate/lib/validators'

export default {
  validations: {
    username: { required, minLength: minLength(3) }
  }
}
</script>

Vue-formulate provides a more declarative approach with built-in form components, while Vuelidate offers a programmatic way to define validations, giving developers more control over the validation process and integration with custom form elements.

Pros of VeeValidate

• More flexible and customizable validation rules
• Better support for complex form scenarios and dynamic validation
• Extensive documentation and community support

Cons of VeeValidate

• Steeper learning curve for beginners
• Requires more setup and configuration compared to Vue Formulate

Code Comparison

VeeValidate:

<template>
  <Form @submit="onSubmit">
    <Field name="email" v-slot="{ field, errors }">
      <input v-bind="field" type="email">
      <span>{{ errors[0] }}</span>
    </Field>
    <button>Submit</button>
  </Form>
</template>

Vue Formulate:

<template>
  <FormulateForm @submit="onSubmit">
    <FormulateInput
      type="email"
      name="email"
      validation="required|email"
    />
    <FormulateInput type="submit" label="Submit" />
  </FormulateForm>
</template>

VeeValidate offers more granular control over field rendering and error display, while Vue Formulate provides a more concise and opinionated approach. VeeValidate's flexibility allows for easier integration with existing form structures, but Vue Formulate's simplicity can lead to faster development for straightforward forms.

Both libraries have their strengths, and the choice between them depends on the specific requirements of your project and your team's preferences.