What is the difference between arrow functions and ordinary functions in vue

The main difference between arrow functions in Vue and ordinary functions is that arrow functions bind external this context, inherit external lexical scope, implicit return, and are suitable for event processing, callbacks and getters/setters. Ordinary functions are suitable for accessing their own this, creating new scopes, explicitly returning specific values, and defining complex or reusable functionality.

The difference between arrow functions and ordinary functions in Vue

There is a difference between arrow functions and ordinary functions in Vue The following main differences:

1. Syntax

• Ordinary function: function function name (parameter list) {function body}
• Arrow function: (parameter list) => {function body}

##2. Context (this binding)

• Normal functions: this is bound to the object that calls the function.
• Arrow functions: this is bound to this in the environment in which the arrow function is defined.

3. Lexical scope

• Normal functions:Create your own lexical scope.
• Arrow functions: Inherit external lexical scope.

4. Return value

• #Ordinary functions: Must use the return statement to explicitly return a value.
• Arrow function: Implicitly returns the last expression in the function body.

5. Usage

• Normal functions: Usually used to define more complex or reusable functions.
• Arrow functions: Typically used for handling event handlers, creating callbacks, or other scenarios that require concise syntax.

When to use arrow functions?

Arrow functions are particularly useful in the following situations:

• Event handlers: They can make the syntax of event handlers more concise, thus reducing Nesting of parentheses and callback functions.
• Callbacks: They can create concise callback functions, especially when using Promise or asynchronous operations.
• Object getters/setters: They can simplify the syntax of getter and setter methods.

When to use normal functions?

Ordinary functions are more suitable in the following situations:

• Need to access the function's own this
• Need to create New functions with their own scope
• Need to explicitly return a specific value
• Define more complex or reusable functionality

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