In vue: the difference between model and v-model

In Vue, model and v-model are both used for two-way data binding, but there are differences. model applies to form input elements, one-way data flow, requires .sync modifier. v-model works with any component, has bidirectional data flow, simplifies syntax, provides modifiers and monitors.

In Vue: The difference between model and v-model

model and v-model are both properties used for two-way data binding in Vue, and are often used for data binding of form elements. However, there are some key differences between them.

model

• Simple attribute binding, only applicable to form input elements (such as <input>, <select></select> and <textarea></textarea>).
• Only supports one-way data flow (from view to model).
• You need to use the .sync modifier to achieve two-way data binding.

v-model

• Sugar syntax to simplify two-way data binding.
• Can be used for any type of component, not just form elements.
• Provides additional functionality such as modifiers and monitors.

Detailed description

Binding target:

• model only Can be used for form input elements, and v-model can be used for any type of component.

Data flow:

• model only supports one-way data flow (view to model), while v-model implements two-way data binding.

Syntax:

• model Use v-bind:value and @ input event to bind data.
• v-model Merges the two into a single attribute, providing concise syntax.

Functions:

• ##v-model provides additional functions, such as:

  Modifiers (e.g.
  • .lazy and .number)
  Monitors (e.g.
  • watch)

Usage scenarios:

When one-way data binding is required or only for form elements, you can use
• model.
When you need two-way data binding or use other types of components, you can use
• v-model.

Routine:

Use

model Bind form elements:

<input v-bind:value="name" @input="name = $event.target.value">

Use

v- model bound form element, with .lazy modifier:

<input v-model.lazy="name">

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