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JavaScript: What is the difference between shift() and unshift() array methods?

Definition: shift(): this method is use to remove first element of an array and returns new array. unshift(): this array method is used to add one or more arrays in existing array list and returns new array. usages of shift(): [crayon-6605992ccddb7010055988/] usages of unshift(): [crayon-6605992ccddc5088894399/]  

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Array functions in javascript

Javascript array functions 1. toString() - convert array to string [crayon-6605992cce447224775669/] 2. pop() - remove/delete last element from an array [crayon-6605992cce450606315695/] 3. push() - add/insert element at the top [crayon-6605992cce453605164679/] 4. shift() - remove/delete first element from an array [crayon-6605992cce457953693170/] 5. unshift() - add/insert element at first position [crayon-6605992cce45a803364096/] 6. concat() - merged(concat) existing array and create new array [crayon-6605992cce45d844750256/] 7. slice() -

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