Please guys, this is an exercise (exercise 04) from Odin Project. I don't know if there is anything wrong with the code below, it keeps failing the 'npm test' (a test in the terminal) but then i checked it with console.log and it worked.
const removeFromArray= function(...args) {
const array = args[0];
const newArray = [];
array.forEach((item) => {
if(!args.includes(item)) {
newArray.push(item);
}
});
return newArray;
};
It seems to me that I have not understood the question very well. But JS has built-in functions that serve the purpose
Array map https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
Array filter https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
But from what I see in the code you have to remove the first element from the array.
I suggest you take a look at this question
remove first element from array and return the array minus the first element
I'd suggest using Array.filter() in combination with Array.includes() to achieve the required result.
We filter any element from the input array if it is present in the itemsToRemove array.
function removeFromArray(array, itemsToRemove) {
return array.filter(element => !itemsToRemove.includes(element));
}
let array = [1,2,3,4,5,6];
let itemsToRemove = [2,4,6];
console.log(removeFromArray(array, itemsToRemove))We can do this in a more efficient manner if itemsToRemove is very large, using a Set:
function removeFromArray(array, itemsToRemove) {
const itemsToRemoveSet = new Set(itemsToRemove);
return array.filter(element => !itemsToRemoveSet.has(element));
}
let array = [1,2,3,4,5,6];
let itemsToRemove = [2,4,6];
console.log(removeFromArray(array, itemsToRemove))