foreach and map methods are high order function, which means function can be passed to the argumenmt and can return.
For Each -
. It is method provided by Array, which executes a provided fn for every elements in the array.
. It is used for doing sideeffect for the given array.
. You cannot break a loop, excepts throwing "exeception".
. It is not chainable.
. It execpts a synchronous fn, it does not wait for the promise
For Each -
. It is method provided by Array, which returns a new array by calling provided fn for every elements in the array.
. It is used when you to want to have a new array with some modification to a array.
. You cannot break a loop, excepts throwing "exeception".
. It is chainable.
. It execpts a synchronous fn, it does not wait for the promise

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An easy question, right? It really depends on what you want to achieve. In case you are not sure, read MDN about forEach() and map()…