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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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How do I efficiently iterate over each entry in a Java Map?

If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going through the map? ...
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Iterate a list as pair (current, next) in Python

...ometimes need to iterate a list in Python looking at the "current" element and the "next" element. I have, till now, done so with code like: ...
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Why should you use an ORM? [closed]

If you are motivate to the "pros" of an ORM and why would you use an ORM to management/client, what are those reasons would be? ...
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JavaScript property access: dot notation vs. brackets?

Other than the obvious fact that the first form could use a variable and not just a string literal, is there any reason to use one over the other, and if so under which cases? ...
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iOS - Build fails with CocoaPods cannot find header files

... on the same project. He made some changes (only to code as far as I know) and made a new branch in the repo. I have checked out his branch and tried to build it, but I am getting an error: ASLogger/ASLogger.h file not found. ...
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Should I use the datetime or timestamp data type in MySQL?

Would you recommend using a datetime or a timestamp field, and why (using MySQL)? 39 Answers ...
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Understanding repr( ) function in Python

... When you call for example repr(x) the interpreter puts 'foo' instead of x and then calls repr('foo'). >>> repr(x) "'foo'" >>> x.__repr__() "'foo'" repr actually calls a magic method __repr__ of x, which gives the string containing the representation of the value 'foo' assigned ...
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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 ...