new questions

`Array.prototype.slice` returns a shallow copy of a portion of an array into a new array object, selected from start to end (end not included). It does not modify the original array. 

const arr = [1, 2, 3, 4];
const sliced = arr.slice(1, 3);
console.log(sliced); // [2, 3]

`Array.prototype.slice` returns a shallow copy of a portion of an array into a new array object, selected from start to end (end not included). It does not modify the original array. 

const arr = [1, 2, 3, 4];
const sliced = arr.slice(1, 3);
console.log(sliced); // [2, 3]

`Array.prototype.concat` merges two or more arrays into a new array. It does not modify the original arrays and can take any number of arguments, including arrays and values. 

const arr1 = [1, 2];
const arr2 = [3, 4];
const merged = arr1.concat(arr2);
console.log(merged); // [1, 2, 3, 4]

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to the specified depth. It helps to flatten nested arrays into a single array. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

`Array.prototype.flatMap` maps each element using a provided mapping function and then flattens the resulting array into a new array. It combines the map and flat operations into a single method. 

const arr = [1, 2, 3];
const flatMapArr = arr.flatMap(x => [x, x * 2]);
console.log(flatMapArr); // [1, 2, 2, 4, 3, 6]

`Array.prototype.from` creates a new array instance from an array-like or iterable object. It can also take a map function to modify the elements while creating the new array. 

const arrLike = { length: 3, 0: 'a', 1: 'b', 2: 'c' };
const arr = Array.from(arrLike);
console.log(arr); // ['a', 'b', 'c']

`Array.prototype.concat` merges two or more arrays into a new array. It does not modify the original arrays and can take any number of arguments, including arrays and values. 

const arr1 = [1, 2];
const arr2 = [3, 4];
const merged = arr1.concat(arr2);
console.log(merged); // [1, 2, 3, 4]

`Array.prototype.unshift` adds one or more elements to the beginning of an array and returns the new length of the array. It modifies the original array. 

const arr = [2, 3];
arr.unshift(1);
console.log(arr); // [1, 2, 3]

`Array.prototype.entries` returns a new Array Iterator object that contains the key/value pairs for each index in the array. It allows iteration over the array's indices and values. 

const arr = ['a', 'b', 'c'];
const iterator = arr.entries();
for (const [index, element] of iterator) {
  console.log(index, element);
}
// Output:
// 0 'a'
// 1 'b'
// 2 'c'

`Array.prototype.keys` returns a new Array Iterator object that contains the keys (indices) for each index in the array. It allows iteration over the array's indices. 

const arr = ['a', 'b', 'c'];
const iterator = arr.keys();
for (const key of iterator) {
  console.log(key);
}
// Output:
// 0
// 1
// 2

`Array.prototype.values` returns a new Array Iterator object that contains the values for each index in the array. It allows iteration over the array's values. 

const arr = ['a', 'b', 'c'];
const iterator = arr.values();
for (const value of iterator) {
  console.log(value);
}
// Output:
// 'a'
// 'b'
// 'c'

`Array.prototype.flatMap` maps each element using a provided mapping function and then flattens the resulting array into a new array. It combines the map and flat operations into a single method. 

const arr = [1, 2, 3];
const flatMapArr = arr.flatMap(x => [x, x * 2]);
console.log(flatMapArr); // [1, 2, 2, 4, 3, 6]

`Array.prototype.map` creates a new array with the results of calling a provided function on every element in the calling array. It does not modify the original array. 

const arr = [1, 2, 3];
const doubled = arr.map(num => num * 2);
console.log(doubled); // [2, 4, 6]

`Array.prototype.filter` creates a new array with all elements that pass a provided test function. It does not modify the original array. 

const arr = [1, 2, 3, 4];
const evens = arr.filter(num => num % 2 === 0);
console.log(evens); // [2, 4]

`Array.prototype.splice` changes the contents of an array by removing or replacing existing elements and/or adding new elements in place. It modifies the original array and returns an array containing the removed elements. 

const arr = [1, 2, 3, 4];
const removed = arr.splice(1, 2, 'a', 'b');
console.log(arr); // [1, 'a', 'b', 4]
console.log(removed); // [2, 3]

`Array.prototype.flat` creates a new array with all sub-array elements concatenated into it recursively up to a specified depth. It can flatten nested arrays to a specified level. 

const arr = [1, [2, [3, [4]]]];
const flatArr = arr.flat(2);
console.log(flatArr); // [1, 2, 3, [4]]

`Array.prototype.concat` merges two or more arrays into a new array. It does not modify the original arrays and can take any number of arguments, including arrays and values. 

const arr1 = [1, 2];
const arr2 = [3, 4];
const merged = arr1.concat(arr2);
console.log(merged); // [1, 2, 3, 4]

`Array.prototype.slice` returns a shallow copy of a portion of an array into a new array object selected from start to end (end not included). It does not modify the original array. 

const arr = [1, 2, 3, 4];
const sliced = arr.slice(1, 3);
console.log(sliced); // [2, 3]

`Array.prototype.splice` changes the contents of an array by removing or replacing existing elements and/or adding new elements in place. It modifies the original array and returns an array containing the removed elements. 

const arr = [1, 2, 3, 4];
const removed = arr.splice(2, 1, 'a', 'b');
console.log(arr); // [1, 2, 'a', 'b', 4]
console.log(removed); // [3]

`String.prototype.slice` extracts a section of a string and returns it as a new string, without modifying the original string. 

const str = 'hello';
const sliced = str.slice(1, 4);
console.log(sliced); // 'ell'

`String.prototype.replace` replaces the first occurrence of a substring or pattern (regular expression) with a new substring. To replace all occurrences, a global regular expression must be used. 

const str = 'hello world';
const newStr = str.replace('world', 'JavaScript');
console.log(newStr); // 'hello JavaScript'

`String.prototype.repeat` returns a new string with the specified number of copies of the original string, concatenated together. 

const str = 'abc';
const repeated = str.repeat(3);
console.log(repeated); // 'abcabcabc'

To initialize a Git repository, open your terminal or command prompt, navigate to the directory where you want your Git project to live, and run the command `git init`. This will create a new .git subdirectory that contains all necessary Git files and will start tracking your project.

In a previous role, I had to quickly learn a new customer relationship management (CRM) system after our company switched platforms. I dedicated time to going through the training materials, attending webinars, and practicing using the system. Within a week, I was proficient and able to assist my team in adapting to the new system efficiently.

To renew your domain with GoDaddy, log into your account and go to the 'My Domains' section. Select the domain you want to renew and click on 'Renew.' Choose the renewal period and confirm your payment details. You can also enable auto-renewal to ensure your domain is automatically renewed before it expires. Once payment is processed, you'll receive a confirmation email, and your domain will be extended for the selected period.