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@babel/plugin-proposal-function-bind

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@babel/plugin-proposal-function-bind

Compile function bind operator to ES5

7.25.9

latest

Source

npm

Version published: 5 months ago

Maintainers: 4

Created: 7 years ago

What is @babel/plugin-proposal-function-bind?

@babel/plugin-proposal-function-bind is a Babel plugin that allows you to use the bind operator (::) in your JavaScript code. This operator is a syntactic sugar for function binding, making it easier to bind functions to a specific context.

What are @babel/plugin-proposal-function-bind's main functionalities?

Function Binding

This feature allows you to bind a function to a specific context using the bind operator (::). In this example, the greet function is bound to the obj context, so it correctly logs 'Hello, Alice!'.

const obj = {
  name: 'Alice',
  greet() {
    console.log(`Hello, ${this.name}!`);
  }
};

const greet = obj.greet::obj;
greet(); // Output: Hello, Alice!

Partial Application

This feature allows you to create partially applied functions using the bind operator (::). In this example, the add function is partially applied with the value 5, creating a new function add5 that adds 5 to its argument.

function add(a, b) {
  return a + b;
}

const add5 = add.bind(null, 5);
console.log(add5(10)); // Output: 15

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