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babel-plugin-transform-function-bind
Advanced tools
The babel-plugin-transform-function-bind package is a Babel plugin that allows you to use the bind operator (::) in your JavaScript code. This operator provides a shorthand for binding functions to a specific context, making your code more concise and readable.
Function Binding
This feature allows you to bind a function to a specific context using the :: operator. In the example, the greet function is bound to the obj context, ensuring that this.name refers to 'Alice' when the function is called.
const obj = {
name: 'Alice',
greet() {
console.log(`Hello, ${this.name}!`);
}
};
const greet = obj::obj.greet;
greet(); // Output: Hello, Alice!
Method Extraction
This feature allows you to extract a method from an object and bind it to a different context. In the example, the greet method is extracted from obj and then called with a different context, resulting in 'Hello, Charlie!'.
const obj = {
name: 'Bob',
greet() {
console.log(`Hello, ${this.name}!`);
}
};
const greet = ::obj.greet;
greet.call({ name: 'Charlie' }); // Output: Hello, Charlie!
This package allows you to use class properties in your JavaScript code. While it doesn't provide the same function binding capabilities as babel-plugin-transform-function-bind, it does offer a way to define methods and properties directly within a class, which can sometimes be used to achieve similar results.
Compile function bind operator to ES5
$ npm install babel-plugin-transform-function-bind
.babelrc
(Recommended).babelrc
{
"plugins": ["transform-function-bind"]
}
$ babel --plugins transform-function-bind script.js
require("babel-core").transform("code", {
plugins: ["transform-function-bind"]
});
FAQs
Compile function bind operator to ES5
The npm package babel-plugin-transform-function-bind receives a total of 372,366 weekly downloads. As such, babel-plugin-transform-function-bind popularity was classified as popular.
We found that babel-plugin-transform-function-bind demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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