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Thread: Performance of Singleton class

  1. #1
    Sencha Premium Member
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    Default Performance of Singleton class

    Hi,

    Is it advisable to use singleton classes from a performance perspective in ExtJS6 applications for mobile devices?

    regards
    Nitesh

  2. #2
    Sencha Premium User mitchellsimoens's Avatar
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    This will largely depend on what the singleton does on instantiation. There isn't any issue with it, I have a few.
    Mitchell Simoens @LikelyMitch

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    Default

    Quote Originally Posted by mitchellsimoens View Post
    This will largely depend on what the singleton does on instantiation. There isn't any issue with it, I have a few.
    We intend to define a common method for service call error handling which will be used in all controllers of the application.
    Wanted to do this rather than write the same function in each controller individually. However the use of the singleton class in this case should not negatively impact the performance of the application.

    regards
    Nitesh

  4. #4
    Sencha Premium User mitchellsimoens's Avatar
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    Yes, that's a fine means of sharing code by using a singleton class and performance will not be noticeably less than if you were to go another route.
    Mitchell Simoens @LikelyMitch

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