iOS: Performance of reloading UIImage(name:...) -
    i have tableview , each row has icon.  90% of rows have same icon.   in cellforrowatindexpath method load image assets folder this:   var cellimage = uiimage(named: "myimage")   does pose performance problem? os somehow smart enough it's same image each time? better if loaded image once , saved in class variable , assigned each time?          uiimage 's named:  api does  kind of caching.   if @ uiimage's documentation , states:      use init(named:in:compatiblewith:)  method (or init(named:)    method) create image image asset or image file located   in app’s main bundle (or other known bundle). because these   methods cache image data automatically,   recommended images use frequently.        

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