JavaScript – Array includes() Method
The Array includes() method returns true if an array contains a specified value, and returns false if the value is not found.
JavaScript – Array indexOf() Method
The Array indexOf() method returns the first index position of a specified value, and returns -1 if the value is not found in the array.
JavaScript – Array.isArray() Method
The Array.isArray() method tests an object to determine if it’s an array. It returns true if an object is an array and false if the object is not.
JavaScript – Array length Property
The Array length property sets or returns the number of elements in an array.
JavaScript – Array join() Method
The Array join() method returns an array as a string leaving the original array unchanged.
JavaScript – Array map() Method
The Array map() method creates a new array by calling a function for every array item.
JavaScript – Array keys() Method
The Array keys() method returns an array iterator object containing the keys of a specified array.
JavaScript – Array pop() Method
The Array pop() method removes and returns the last element of an array, changing the original array.
JavaScript – Array lastIndexOf() Method
The lastIndexOf() method returns the last position of a specified value, searching from right to left, returning -1 if the value is not found.
JavaScript – Array.prototype Property
The Array.prototype property allows new properties and methods to be added to existing arrays.
JavaScript – Array push() Method
The Array push() method adds new items to the end of an array, changing the length of the array.
JavaScript – Array reduce() Method
The reduce() method executes a reducer function for every array item, returning a single value representing the function’s accumulated result.
JavaScript – Array reduceRight() Method
The Array reduceRight() method executes a reducer function for every array item, working from right to left, returning a single value.
JavaScript – Array reverse() Method
The Array reverse() method reverses the order of the items in an array, overwriting the original array.
JavaScript – Array shift() Method
The Array shift() method removes and returns the first element of an array, changing the original array.
JavaScript – Array slice() Method
The Array slice() method returns selected elements in an array as a new array, without changing the original array.
JavaScript – Array some() Method
The Array some() method checks if any array elements pass a test by executing a callback function for each array element.
JavaScript – Array sort() Method
The Array sort() method sorts the elements of an array as strings in alphabetical and ascending order, overwriting the original array.
JavaScript – Array splice() Method
The Array splice() method adds and/or removes array elements, overwriting the original array.
JavaScript – Array toString() Method
The Array toString() method returns a string with array values separated by commas, and does not change the original array.