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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-69579780c6cde214124177/] usages of unshift(): [crayon-69579780c6ce5392887517/]  

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Array functions in javascript

Javascript array functions 1. toString() - convert array to string [crayon-69579780c6f1a157482515/] 2. pop() - remove/delete last element from an array [crayon-69579780c6f1f131974733/] 3. push() - add/insert element at the top [crayon-69579780c6f21717551404/] 4. shift() - remove/delete first element from an array [crayon-69579780c6f23237428829/] 5. unshift() - add/insert element at first position [crayon-69579780c6f26989078347/] 6. concat() - merged(concat) existing array and create new array [crayon-69579780c6f28964172998/] 7. slice() -

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