how to use the bindall function from lodash in javascript

The bindAll function of Lodash is used to bind the this context of specified methods of an object to the object itself permanently. This ensures that the method can never be called with a different context even if it is invoked separately or passed around as a callback.

Here is an example of how to use the bindAll function in JavaScript:

index.tsx
const object = {
  name: "John",
  age: 30,
  sayName() {
    console.log(this.name);
  },
  sayAge() {
    console.log(this.age);
  },
};

// Bind this context of sayName and sayAge permanently to the object
_.bindAll(object, ["sayName", "sayAge"]);

// Invoke the methods now and pass them around as callbacks
object.sayName(); // Output: John
setTimeout(object.sayAge, 1000); // Output: 30
393 chars
18 lines

In the example above, we have created an object having two methods sayName and sayAge. We then use the bindAll function of Lodash to bind the this context of both these methods permanently to the object. Finally, we invoke the methods using the object's reference and setTimeout method to showcase how they can be passed around as callbacks.

Please note that the first argument to bindAll function must be the target object and the second argument must be an array of method names that need to be bound.

gistlibby LogSnag