[Webkit-unassigned] [Bug 212449] Javascript engine gets confused, calls method on wrong object.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=212449

--- Comment #5 from Yusuke Suzuki <ysuzuki at apple.com> ---
(In reply to Yusuke Suzuki from comment #3)
> This is https://bugs.webkit.org/show_bug.cgi?id=38970
> 
> Since Object.render is defined as non-enumerable property, for-in for
> PayrollRemittanceAgencyEventWizard is listing "render".
> 
> You can avoid this issue if,
> 
> 1. you define render etc. in Object with enumerable: false.

Object.prototype.

> 
> Or
> 
> 2. If options is truly a shallow option object, you can change
> 
> TTBackboneView#initialize
> 
> 	initialize( options ) {
> 		//Convert options object to this object properties as early as possible.
> 		if ( options && typeof options == 'object' ) {
> 			for ( const property in options ) {
> 				this[property] = options[property];
> 			}
> 		}
> 	}
> 
> to
> 
> 	initialize( options ) {
> 		//Convert options object to this object properties as early as possible.
> 		if ( options && typeof options == 'object' ) {
> 			for ( const property in options ) {
>                                 if (options.hasOwnProperty(property))
> 				    this[property] = options[property];
> 			}
> 		}
> 	}

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