Arrays are the next item on our JavaScript cheat sheet. Arrays are used in a variety of programming languages. They are a method of categorising variables and attributes. Arrays can be defined as a collection of objects of the same type. In JavaScript, here's how one can make an array of cars:

Now that we understand how to make arrays, we can perform a bunch of operations on them. Let us take a look at some JavaScript methods which can be used to perform various types of operations on arrays:

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  pop(): This method is used for removing the last element of an array.


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  push(): This method is used for adding a new element at the very end of an array.


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  concat(): This method is used for joining various arrays into a single array.


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  reverse(): This method is used for reversing the order of the elements in an array.


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  shift(): This method is used for removing the first element of an array.


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  slice(): This method is used for pulling a copy of a part of an array into a new array.


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  splice(): This method is used for adding elements in a particular way and position.


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  toString(): This method is used for converting the array elements into strings.


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  unshift(): This method is used for adding new elements at the beginning of the array.


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  valueOf(): This method is used for returning the primitive value of the given object.


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  indexOf(): This method is used for returning the first index at which a given element is found in an array.


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  lastIndexOf(): This method is used for returning the final index at which a given element appears in an array.


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  join(): This method is used for combining elements of an array into one single string and then returning it.


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  sort(): This method is used for sorting the array elements based on some condition.