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Does Typescript support the ?. operator? (And, what's it called?)

... Update: it is supported as of TypeScript 3.7 and called Optional chaining: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#optional-chaining I can't find any reference to it whatsoever in the TypeScript language specification. As far as ...
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displayname attribute vs display attribute

What is difference between DisplayName attribute and Display attribute in ASP.NET MVC? 4 Answers ...
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What's the difference between ng-model and ng-bind

I'm currently learning AngularJS and am having difficulty understanding the difference between ng-bind and ng-model . 8 ...
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Intermittent log4net RollingFileAppender locked file issue

We are seeing an intermittent issue on development and production machines whereby our log files are not getting logged to. ...
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What kind of virtual machine is BEAM (the Erlang VM)?

From what I understand a virtual machine falls into two categories either "system virtual machine" or a "process virtual machine". It's kind of fuzzy to me where BEAM lies. Is there another kind of virtual machine I am not aware of? ...
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Can I extend a class using more than 1 class in PHP?

...nd it for use in production, one can use ReflectionClass to access private and protected methods. – Denis V Dec 18 '13 at 19:21 2 ...
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How to use auto-layout to move other views when a view is hidden?

I have designed my custom Cell in IB, subclassed it and connected my outlets to my custom class. I have three subviews in cell content which are: UIView (cdView) and two labels (titleLabel and emailLabel). Depending on data available for each row, sometimes I want to have UIView and two labels displ...
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Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]

...ather than relying on Globals def function(Var1, Var2): if Var2 == 0 and Var1 > 0: print("Result One") elif Var2 == 1 and Var1 > 0: print("Result Two") elif Var1 < 1: print("Result Three") return Var1 - 1 function(1, 1) ...
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Check existence of directory and create if doesn't exist

...ry(s). What I've written below will check for the existence of a directory and move into it, or create the directory and then move into it. Is there a better way to approach this? ...
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Detect and exclude outliers in Pandas data frame

I have a pandas data frame with few columns. 17 Answers 17 ...