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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-6920741369444098027621/] usages of unshift(): [crayon-692074136944a019866259/]  

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Array functions in javascript

Javascript array functions 1. toString() - convert array to string [crayon-6920741369998842974793/] 2. pop() - remove/delete last element from an array [crayon-692074136999d976033494/] 3. push() - add/insert element at the top [crayon-692074136999f388501469/] 4. shift() - remove/delete first element from an array [crayon-69207413699a0441704759/] 5. unshift() - add/insert element at first position [crayon-69207413699a2767171408/] 6. concat() - merged(concat) existing array and create new array [crayon-69207413699a4977709442/] 7. slice() -

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