Replace array value in javascript var users = [ { id : 1 , firstname : 'John' , lastname : 'Ken' }, { id : 2 , firstname : 'Robin' , lastname : 'Hood' }, { id : 3 , firstname : 'William' , lastname : 'Cook' } ]; var editedUser = { id : 2 , firstname : 'Michael' , lastname : 'Angelo' }; users = users. map ( u => u. id !== editedUser. id ? u : editedUser); console . log ( 'users -> ' , users); Remove array value in javascript let value = 3 let arr = [ 1 , 2 , 3 , 4 , 5 , 3 ] arr = arr. filter ( item => item !== value) console . log (arr) // [ 1, 2, 4, 5 ] Hooks in react useState, useEffect, useRef, useMemo When to use a Class Component over a Function Component? If the component needs state or lifecycle methods then use class component otherwise use function component. What is Middleware? arrow function vs normal function ? What is the use of super(props) ? So, the simple answer to thi...
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