The given line of code performs the following: 1. **`this.myArray.filter(...)`**: ...

The given line of code performs the following:

1. this.myArray.filter(...):

   • It creates a new array by iterating over the elements of this.myArray using the filter method.
   • The filter method keeps elements in the new array only if the condition provided in the callback function evaluates to true.

2. Callback function parameters (_, i):

   • The first parameter _ represents the current element of the array. However, the _ is unused, meaning the actual element is not relevant to this operation.
   • The second parameter i represents the index of the current element in the array during the iteration.

3. Condition i !== indexToRemove:

   • The callback returns true for all indices not equal to indexToRemove. This effectively removes the element at the index indexToRemove from the array.

4. this.myArray = ...:

   • The result of the filter method (a new array without the element at indexToRemove) replaces the existing this.myArray array.

Key Takeaway:

This line of code removes the element located at the index indexToRemove from the this.myArray array while keeping all other elements intact.

Example:

this.myArray = [10, 20, 30, 40];
const indexToRemove = 2;

this.myArray = this.myArray.filter((_, i) => i !== indexToRemove);

console.log(this.myArray); 
// Output: [10, 20, 40]