2 #array Functions Excel video #ak

2 Array Functions
#Arrays are an essential data structure used in programming. They allow you to store multiple values of the same data type in a single variable, making it easier to work with large sets of data. In this context, array functions refer to built-in functions provided by programming languages to manipulate arrays. Here are some common array functions:

length(): This function returns the length of an array, i.e., the number of elements in the array.

push(): This function adds one or more elements to the end of an array.

pop(): This function removes the last element from an array and returns that element.

shift(): This function removes the first element from an array and returns that element.

unshift(): This function adds one or more elements to the beginning of an array.

splice(): This function allows you to add, remove, or replace elements in an array.

concat(): This function joins two or more arrays and returns a new array.

slice(): This function returns a portion of an array, i.e., a copy of a part of the array.

indexOf(): This function returns the index of the first occurrence of a specified element in an array.

lastIndexOf(): This function returns the index of the last occurrence of a specified element in an array.

forEach(): This function executes a provided function once for each element in an array.

map(): This function creates a new array with the results of calling a provided function on every element in the array.

filter(): This function creates a new array with all elements that pass the test implemented by a provided function.

reduce(): This function applies a function against an accumulator and each element in the array to reduce it to a single value.

sort(): This function sorts the elements of an array in place and returns the sorted array.