Here’s a comprehensive list of commonly used JavaScript array methods:

1. Array Creation Methods:

• Array.isArray(): Checks if a value is an array.
• Array.of(): Creates a new array instance from a variable number of arguments.
• Array.from(): Creates a new array from an iterable or array-like object.

2. Array Manipulation Methods:

• push(): Adds one or more elements to the end of an array and returns the new length.
• pop(): Removes the last element from an array and returns that element.
• shift(): Removes the first element from an array and returns that element.
• unshift(): Adds one or more elements to the beginning of an array and returns the new length.
• splice(start, deleteCount, item1, item2, ...): Adds/removes elements at a specified index.
• concat(): Merges two or more arrays and returns a new array.
• slice(start, end): Returns a shallow copy of a portion of an array into a new array.

3. Array Iteration and Transformation Methods:

• forEach(callback): Executes a provided function once for each array element.
• map(callback): Creates a new array populated with the results of calling a provided function on every element.
• filter(callback): Creates a new array with all elements that pass the test implemented by the provided function.
• reduce(callback, initialValue): Applies a function against an accumulator and each element of the array to reduce it to a single value.
• reduceRight(callback, initialValue): Similar to reduce(), but works from right to left.
• find(callback): Returns the first element that satisfies the provided testing function.
• findIndex(callback): Returns the index of the first element that satisfies the provided testing function.
• some(callback): Tests whether at least one element in the array passes the provided function.
• every(callback): Tests whether all elements in the array pass the provided function.

4. Array Searching and Sorting Methods:

• indexOf(searchElement, fromIndex): Returns the first index at which a given element can be found, or -1 if not found.
• lastIndexOf(searchElement, fromIndex): Returns the last index at which a given element can be found, or -1 if not found.
• includes(searchElement, fromIndex): Determines whether an array includes a certain element.
• sort(compareFunction): Sorts the elements of an array in place and returns the sorted array.
• reverse(): Reverses the array elements in place.

5. Array Joining and Conversion Methods:

• join(separator): Joins all elements of an array into a string, with an optional separator.
• toString(): Returns a string representing the array and its elements.
• toLocaleString(): Returns a localized string representing the array.

6. Array Filling and Copying Methods:

• fill(value, start, end): Fills all elements of an array from a start index to an end index with a static value.
• copyWithin(target, start, end): Shallow copies part of an array to another location in the same array.

7. Array Methods for Set-Like Operations:

• flat(depth): Flattens a nested array up to the specified depth.
• flatMap(callback): First maps each element using a mapping function, then flattens the result into a new array.
• entries(): Returns a new array iterator object that contains the key/value pairs for each index.
• keys(): Returns a new array iterator object that contains the keys for each index in the array.
• values(): Returns a new array iterator object that contains the values for each index.
• from(): Creates a new array from an array-like or iterable object.

8. Array Finding and Checking Methods:

• find(callback): Returns the first element that satisfies the provided testing function.
• findIndex(callback): Returns the index of the first element that satisfies the provided testing function.
• some(callback): Tests whether at least one element in the array passes the provided test.
• every(callback): Tests whether all elements in the array pass the provided test.

This list covers most of the important array functions you will encounter in JavaScript. Each of these functions offers a powerful way to manipulate or inspect arrays in different ways, making them essential for working with data collections in JavaScript.