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react usememo

Naughty Nightingale answered on March 12, 2021 Popularity 10/10 Helpfulness 3/10

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  • react usememo

    6
    Popularity 10/10 Helpfulness 3/10 Language javascript
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    Contributed on Mar 12 2021
    Naughty Nightingale
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    8

    useMemo is a hook that takes a function and a list of dependencies as arguments, and returns a value that is the result of calling the function. The value is stored in a cache and is only re-computed if one of the dependencies has changed.

    Here is the syntax for useMemo:

    In this example, the component calculates the sum of the first props.x positive integers using an expensive loop. The value is stored in a cache and is only re-computed if either props.x or props.y changes. This can help to improve the performance of the component by avoiding unnecessary re-calculations.

    Popularity 10/10 Helpfulness 4/10 Language javascript
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    Contributed on Jan 06 2023
    vip_codes
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    Contributed on Sep 05 2021
    Inexpensive Ibex
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    Contributed on Nov 08 2022
    Mehedi Islam Ripon
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    Contributed on Aug 12 2021
    Poised Puffin
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    Popularity 10/10 Helpfulness 2/10 Language javascript
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    Contributed on Sep 15 2022
    myagizmaktav
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    Popularity 10/10 Helpfulness 1/10 Language javascript
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    Contributed on May 24 2022
    naly moslih
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