The Array.with() method is a modern JavaScript feature introduced in ECMAScript 2023 (ES14). It creates a shallow copy of an array and replaces the element at a specified index with a new value, leaving the original array unchanged. This makes it a non-mutating alternative for modifying elements in an array. Syntax Parameters Parameter Description index…
The Array.values() method is a built-in JavaScript function that returns a new array iterator object. This iterator contains the values of each element in the array in their original order. Syntax Parameters The Array.values() method does not take any parameters. Return Value The method returns a new Array Iterator object containing the values of the…
The Array.unshift() method is a built-in JavaScript function that adds one or more elements to the beginning of an array and returns the new length of the array. This method is useful when you need to prepend elements to an array. Syntax Parameters Parameter Description element1, …, elementN (Required) The elements to be added to…
The Array.toString() method is a built-in JavaScript function that converts an array into a comma-separated string. It is a simple way to represent the contents of an array as a string, with each element of the array joined by a comma. Syntax Parameters The toString() method does not take any parameters. Return Value The method…
The Array.toSpliced() method is a new JavaScript function introduced in ECMAScript 2023 (ES14). It creates a shallow copy of an array with modifications specified by the provided parameters, without changing the original array. Syntax Parameters Parameter Description start (Required) The index at which to begin changing the array. Negative values count from the end of…
The Array.toSorted() method is a new addition to JavaScript, introduced in ECMAScript 2023 (ES14). It returns a new array with the elements sorted in the specified order, leaving the original array unchanged. Syntax Parameters Parameter Description compareFunction (Optional) A function that defines the sort order. If omitted, elements are converted to strings and sorted lexicographically…
The Array.toReversed() method is a new JavaScript function introduced in ECMAScript 2023 (ES14). It returns a new array with the elements of the original array reversed, leaving the original array unchanged. Syntax Parameters The toReversed() method does not take any parameters. Return Value This method returns a new array containing the elements of the original…
The Array.splice() method is a built-in JavaScript function used to add, remove, or replace elements in an array. It modifies the original array directly and is commonly used for tasks requiring precise control over array elements. Syntax Parameters Parameter Description start (Required) The index at which to start changing the array. Negative values count from…
The Array.some() method is a built-in JavaScript function that tests whether at least one element in an array passes a provided test implemented by a callback function. It stops execution and returns true when it finds an element that satisfies the condition, making it efficient for use cases where partial matches are sufficient. Syntax Parameters…
The Array.slice() method is a built-in JavaScript function that creates a shallow copy of a portion of an array into a new array. The selected portion is determined by the start and end indices. It does not modify the original array and is commonly used for extracting parts of an array or creating duplicates. Syntax…