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-68c7dd1d8fb68756922174/] usages of unshift(): [crayon-68c7dd1d8fb6f045978859/]
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