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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-6af400f759bf2501448100/] usages of unshift(): [crayon-6af400f759bf7440097112/]  

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Array functions in javascript

Javascript array functions 1. toString() - convert array to string [crayon-6af400f75a08a681426081/] 2. pop() - remove/delete last element from an array [crayon-6af400f75a092525427560/] 3. push() - add/insert element at the top [crayon-6af400f75a094739667794/] 4. shift() - remove/delete first element from an array [crayon-6af400f75a097726099480/] 5. unshift() - add/insert element at first position [crayon-6af400f75a099390030137/] 6. concat() - merged(concat) existing array and create new array [crayon-6af400f75a09b764981448/] 7. slice() -

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