Category: Uncategorized
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filter()
input callback function and return true or false and get true or false value of array and return new array. Ye ek tarah ke element hume dega for exm. agar humen odd chaye to odd dega agar humen even chahiye to even dega.
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map()
input callback function and return value / return new array. Ye new array dega or old array wesa hi rahega, agar hume kis array me se kisi index ya array of object ki key ki value ko get karna hai to iska use karenge.
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forEach()
input a callback function and print index or value. ye array ki value ko iterate karega or index and value ko print karega.